Klipsch THX ULTRA2 User manual

THX ULTRA2 SURROUND PREAMPLIFIER
STAGE ONE

STAGE ONE
THX SURROUND PREAMPLIFIER
IMPORTANT SAFETY INSTRUCTIONS
CAUTION:
RISK OF ELECTRIC SHOCK!
DO NOT OPEN!
CAUTION! To reduce the risk of electric shock and fire, do not
remove the cover or back plate of the device enclosure. There are
no user serviceable parts inside. Refer servicing to an Aragon
authorized service center.
CAUTION! The international symbol of a lightning bolt inside a trian-
gle is intended to alert the user to uninsulated "dangerous voltage"
within the device enclosure. The international symbol of an excla-
mation point inside a triangle is intended to alert the user to the
presence of important operating, maintenance and servicing infor-
mation in the manual accompanying the device.
WARNING! To reduce the risk of fire or electrical shock, do not
expose this equipment to rain or moisture.
1. Read Instructions – All safety and operating instructions should be read
before operating the device.
2. Retain Instructions – The safety and operating instructions should be
retained for future reference.
3. Heed Warnings – All warnings on the device and in the operating instruc-
tions should be adhered to.
4. Follow Instructions – All operating and safety instructions should be fol-
lowed.
5. Attachments – Do not use attachments not recommended by the product
manufacturer as they may cause hazards.
6. Water and Moisture – Do not use this product near water (for example,
near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet base-
ment; or near a swimming pool; and the like).
7. Ventilation – Slots and openings in the cabinet are provided for ventilation
and to ensure reliable operation of the product and to protect it from over-
heating, and these openings must not be blocked or covered. The open-
ings should never be blocked by placing the product on a bed, sofa, rug,
or other similar surface. This product should not be placed in a built-in
installation such as a bookcase or rack unless proper ventilation is provid-
ed or the manufacturer’s instructions have been adhered to.
8. Heat – This product should be situated away from heat sources such as
radiators, heat registers, stoves, or other products that produce heat.
9. Power Sources – This product should be operated only from the type of
power source indicated on the marking label. If you are not sure of the
type of power supply in your home, consult with your product dealer or the
local power company. For products intended to operate from battery
power, or other sources, refer to the operating instructions.
10. Grounding – This product is equipped with a three-wire grounding-type
plug, a plug having a third (grounding) pin. This plug will only fit into a
grounding-type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact your electrician to replace your obso-
lete outlet. Do not defeat the safety purpose of the grounding-type plug.
11. Power Cord Protection – Power supply cords should be routed so that
they are not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the product.
12. Overloading – Do not overload wall outlets, extension cords, or integral
convenience receptacles as this can result in a risk of fire or electrical
shock.
13. Lightning and Periods of Non-Use – For added protection for this prod-
uct during a lightning storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet and disconnect the
antenna or cable system. This will prevent damage to the product due to
lightning and powerline surges.
14. Cleaning – Unplug this product from the wall outlet before cleaning. Do
not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
15. Object and Liquid Entry – Never push objects of any kind into this prod-
uct through openings as they may touch dangerous voltage points or
short-out parts that could result in a fire or electric shock. Never spill liquid
of any kind on the product.
16. Damage Requiring Service – Unplug this product from the wall outlet and
refer servicing to qualified service personnel under the following condi-
tions:
a) When the power supply cord or plug is damaged,
b) If liquid has been spilled, or objects have fallen into the product,
c) If the product has been exposed to rain or water,
d) If the product does not operate normally by following the operating
instructions. Adjust only those controls that are covered by the operat-
ing instructions as an improper adjustment of other controls may result
in damage and often will require extensive work by a qualified techni-
cian to restore the product to its normal operation,
e) If the product has been dropped or damaged in any way, and
f) When the product exhibits a distinct change in performance – this indi-
cates a need for service.
17. Replacement Parts – When replacement parts are required, be sure the
service technician has used replacement parts specified by the manufac-
turer or that have the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric shock, or other haz-
ards.
18. Safety Check – Upon completion of any service or repairs to this product,
ask the service technician to perform safety checks to determine that the
product is in proper operating condition.
19. Servicing – Do not attempt to service this product yourself as opening or
removing covers may expose you to dangerous voltage or other hazards.
Refer all servicing to qualified service personnel.
If this unit is purchased outside of the U.S., please contact your local dealer
or distributor for service center information. If purchased inside the U.S. and
dealer service is not available, contact Aragon Customer Service for a return
authorization (RA) number before shipping. For further service information,
contact:
ARAGON CUSTOMER SERVICE
1-866-781-7284
137 COUNTY RD 278
HOPE, AR USA 71801
2

Welcome to the Aragon Stage One.
We designed the Stage One as a high-performance multi-channel preamp/processor that would eliminate the need for separate home theater and two-channel
music systems. It integrates an audiophile-quality analog stereo preamplifier (based on the design of the Aragon Aurum), an eight-channel analog preamplifier
for connection to a DVD-Audio player, SACD player, or other multi-channel source with analog outputs, and an advanced THX® Ultra2 digital surround sound
processor.
Sophisticated design should mean more than just great performance. A central goal in the development of the Stage One was ease of use without the sacrifice
of operational flexibility. We believe that in this respect the Stage One breaks new ground. The Stage One combines the ease of use of a good stereo
preamplifier with the most advanced surround-sound processing available today plus numerous features that allow precise tailoring to the rest of your
audio/video system.
The Stage One itself will lead you through the basics so that you can start enjoying your system almost as soon as you have finished making connections
between components. This manual exists to help you take the processor to its limits, to answer your questions, and to guide you through any troubleshooting
that might be required. To get the most out of your Stage One, look through the opening sections before installation and read the entire manual at your leisure
afterward.
The version number of the owner’s manual is located at the bottom of this page. Updates will be provided on our Web site at
http://www.aragonelectronics.com/
Click on Help Center at the top of that page to download the latest version of the manual in Adobe Acrobat pdf format. Adobe’s free Acrobat Reader is required
to view the downloaded manual on your computer, and our Web site provides a link for downloading it as well.
Please send in your warranty card or register online in the Help Center so that we can keep you informed about updates to the Stage One and other important
developments.
Mondial Designs Worldwide Headquarters
3502 Woodview Trace
Suite 200
Indianapolis, IN 46268
866-781-7284
www.aragonelectronics.com
Version Number 1.1
Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are registered trademarks of Dolby Laboratories. Confidential Unpublished Works. ©1992-1999
Dolby Laboratories, Inc. All rights reserved.
Manufactured under license from Digital Theater Systems, Inc. U.S. Pat. No. 5,451,942 and other worldwide patents issued and pending. “DTS” and “DTS Digital Surround” are registered trademarks
of Digital Theater Systems, Inc. ©1996 Digital Theater Systems, Inc. All rights reserved.
Manufactured under license from Lucasfilm Ltd. U.S. patent numbers 5,043,970; 5,189,703; and/or 5,222,059. European patent number 0323830. Other U.S. and foreign patents pending. Lucasfilm and THX are
trademarks or registered trademarks of Lucasfilm Ltd. Surround EX is a trademark of Dolby Laboratories. Used under authorization.
3

STAGE ONE
THX SURROUND PREAMPLIFIER
TABLE OF CONTENTS
Stage One Features
Latest Digital Decoding and Post-processing
Two-channel Analog Preamplifier
Full Auto Format Selection
Analog Volume Control
In-system Software Upgradable Design
24-Bit A/D and D/A Converters
Eight-channel Analog Preamplifier
Combination Digital and Analog Bass Management
Analog-Domain Dialog Normalization
Adjustable Crossover Point
Separate Level Settings for Each Mode
On-the-Fly Adjustments
Independent Selection of Audio and Video Sources
Built-in AM/FM Tuner
Front Panel Controls
Front Panel Control Operations
Stage Manager Control and Enter Button
Normal Mode
Post-processing Mode
Tuning Mode
Menu Mode
Speaker Configuration
Level Settings
Speaker Distance
THX Setup Menu
Input Selection Buttons
Mute Button and Mute LED
Front Panel Display
Current Mode
Two-channel and Eight-channel Analog Passthrough
Sampling Rate
Volume Level
Current Input
Post-processing
Rear Panel Inputs
Rear Panel Outputs
Remote Control
Hard Buttons
Adjust
Setup
Vol +/-
CH +/-
Mute
ƒ
Up/Down
Left/Right
OK
Mode
Device
Page Up/Down
Backlight
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Power and Input Selection
Modes Page
Analog
Digital
Stereo
Direct
Pro Logic II
DTS Neo:6
Club
Mono
5-Channel Stereo
Party
Adjustments
Pro Logic II
Dolby Digital
THX
DTS
Display
On-the-Fly
Video
Tuner
Pro Logic II Modes
Pro Logic II Setup
Dolby Digital
DTS
THX
THX ASA/EX
Tuner
Separate Video
Setup
On-the-Fly
Display
Input Connections
AC Input
Digital Inputs
Analog Inputs
Video Inputs
Multi-channel Analog Input
Antenna Input
Speaker Placement and Configuration
System Setup
Remote Control System Setup
Front-panel System Setup
Speaker Configuration
Level Settings
Speaker Distances
THX Setup
Crossover Setup
General Operation
THX
AM/FM Tuner
Front-panel Display and Lighting
Advanced Features
Advanced Menus
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UNPACKING
WE WANT YOUR NEW PREAMPLIFIER TO LOOK AS GOOD AS IT DID
LEAVING THE FACTORY. PLEASE CHECK PROMPTLY FOR TRANSIT
DAMAGE.
Carefully unpack your new preamplifier. In extreme circumstances, items may
have become damaged in transit. If any damage is discovered, notify the
delivery service and/or dealer where the system was purchased. Make a
request for inspection, and follow the instructions for evaluation. Be sure to
keep the product with its original shipping carton and save your packing mate-
rial to aid in future transportation.
STAGE ONE FEATURES
Latest Digital Decoding and Post-Processing
The Stage One uses advanced digital processing and 7.1-channel output
capability to support all the latest surround-sound formats and decoding
options, including Dolby Digital, DTS, THX Surround EX, DTS ES Discrete
and Matrix, DTS Neo:6, and Dolby Pro Logic II. No matter what the source,
the Stage One can select and apply the best decoding method automatically.
And with its THX Ultra2 post-processing algorithms, the Stage One makes
sure that the final sound is exactly what the director intended. In addition, it
can apply its DSP power to multi-channel enhancement of ordinary stereo
programs via its Party, Club, and 5-Channel Stereo modes. It even does
mono!
Two-Channel Analog Preamplifier
The Stage One also includes an audiophile-quality two-channel analog pre-
amplifier. Each analog input can be configured for Stereo Direct operation,
which bypasses the analog-to-digital converters and the DSP module to guar-
antee uncompromised reproduction of analog sources. Super Audio CD
(SACD) and DVD-Audio players can be connected via their analog outputs to
retain the full fidelity of these new formats.
Full Auto Format Selection
The Stage One will automatically determine the format of an incoming digital
bitstream and switch itself to the appropriate processing mode. Separate level
settings are available for each mode and are loaded automatically when a
new mode is selected. This enables the system to be operated at the push of
a button.
Analog Volume Control
The Stage One adjusts channel balance and overall volume in the analog
domain to retain the full resolution of all signals.
In-System Software Upgradable Design
As the world changes, the Stage One can change with it. Software upgrades
can be delivered in the field via a back-panel RS-232 port. This enables us to
make the Stage One compatible with new sources and to enhance its opera-
tion without ever having to touch the hardware or even remove it from your
system.
24-Bit A/D and D/A Converters
The Stage One uses identical, state-of-the-art, 24-bit Crystal Semiconductor
digital-to-analog converters for all eight output channels. The stereo
analog inputs, when not in Direct mode, are translated to digital with a
24-bit A/D converter.
Eight-Channel Analog Preamplifier
The Stage One provides an eight-channel analog input to allow direct connec-
tion of DVD players with built-in decoders, such as those for DVD-Audio and
SACD. A DB-25 connector is used. This input completely bypasses the digital
processing module, allowing the Stage One to function as an eight-channel
analog preamplifier. (See “Input Connections” for the DB-25 connector’s pin
configuration).
Combination Digital and Analog Bass Management
The Stage One incorporates an advanced hybrid bass-management system
that allows the preamp to preserve full dynamic range under all conditions. It
performs high- and low-pass crossover filtering, as well as bass summing to
the subwoofer, in the digital processor. This allows for more precise crossover
filters. When there is no subwoofer, it routes low-frequency signals (including
the LFE channel in Dolby Digital and DTS) to the system’s "Large" speakers
in the analog domain. This method eliminates any need for digital-domain
attenuation when these signals are combined. Processors that perform this
function digitally (as most others do) must attenuate the signals being com-
bined to avoid overload in the DSP module, resulting in a loss of dynamic
range that can significantly impair sound quality.
Analog-Domain Dialog Normalization
Dolby Digital incorporates a function called Dialog Normalization, which was
originally developed with HDTV in mind. It enables content providers to main-
tain a constant average level for dialog at a given volume setting, regardless
of the nature of the program. The idea is to enable you to switch from channel
to channel on an HDTV set without ever having to lunge for the volume con-
trol, all while not compromising dynamic range. Dolby requires that all Dolby
Digital processors correctly respond to Dialog Normalization instructions in the
bitstream. The Stage One has the ability to make the necessary adjustments
in the analog domain. If this function were performed digitally, it could cause a
loss of resolution.
STAGE ONE
THX SURROUND PREAMPLIFIER
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FRONT-PANEL CONTROLS
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Adjustable Crossover Point
The Stage One enables you to designate each set of speakers in your system
(Front, Center, Surround, and Surround Back) as either Large or Small and to
adjust the crossover frequency below which bass is redirected away from the
channels feeding the Small speakers. There are twenty different crossover
frequencies to choose from. Separate crossovers can be selected for Stereo
and surround modes.
Separate Level Settings for Each Mode
The initial setup procedure defines a single channel balance for all modes.
Although this setting should be correct for most of the basic surround modes,
you can trim the balances individually for each mode from the Advanced
Menu. Once set for a particular mode, customized channel levels will be
loaded automatically whenever that mode is selected.
On-the-Fly Adjustments
You can use the remote control’s On-the-Fly and Balances functions to make
temporary channel-level adjustments for a particular soundtrack. In Stereo
mode, you can adjust the left-right balance and subwoofer level. In surround
modes, you can adjust the front-rear balance as well as the center-channel
and subwoofer levels.
Independent Selection of Audio and Video Sources
Apage on the remote control enables you to select video independently with
the push of a button. This allows you to watch one source while you listen to
another, without going through any complicated setup menus.
Built-In AM/FM Tuner
The Stage One has a built-in AM/FM tuner with 20 station presets. The
remote control’s Tuner page contains buttons for selecting presets, as well as
station-seek buttons.
FRONT-PANEL CONTROLS
1Power
The Power button switches the Stage One between its Active and Standby
modes. In Standby, the analog circuitry remains powered while the DSP
module is shut down and the outputs are muted.
2Mute
Pressing the Mute button will toggle the Stage One’s audio outputs on
and off.
3Mute LED
The Mute LED will illuminate red when the system is muted.
4Enter Button
The Enter button is used in conjunction with the Stage Manager to oper-
ate the Stage One menu system. (See "Front-panel Operation.") When
the tuner is selected, the Enter button is used to switch the Stage
Manager into tuning mode. (See "Tuner.")
5Input Selection Buttons
Pressing any of these buttons (TV, DVD, etc.) selects the corresponding
rear-panel connection as the current input.
6Input Indicator LED
The LEDs above the Input Selection buttons indicate the source currently
engaged.
7Stage Manager Control
The Stage Manager is both a knob and, when pushed, a button. It serves
a number of functions, including volume control, AM/FM tuning, and menu
operation. (See "Stage Manager.")
8Display
The Stage One has a two-line by twenty-character vacuum-tube fluores-
cent display that indicates the current audio mode, input, and volume con-
trol setting.

FRONT-PANEL CONTROL
OPERATIONS
Stage Manager Control and Enter Button
The Stage Manager control knob is turned clockwise and counter-clockwise to
make adjustments, and it also functions as a pushbutton in certain operations.
In combination with the Enter button, it controls many of the Stage One’s
functions.
Normal Mode
In the Normal mode, the Stage Manager functions as a volume control.
Turning it to the right will increase the volume, and turning it to the left will
decrease the volume. The Stage One’s volume-control range is from –62dB
to +12dB, with 1dB steps from –62dB to –36dB and 0.5dB steps from
–35.5dB to +12dB. Below –62dB, the system is muted.
Post-Processing Mode
In the Normal mode, holding the input selection button for the current
source and rotating the Stage Manager will change the post-processing
mode. The following selections are available: Stereo, Stereo Direct, Pro
Logic II, DTS Neo:6, Club, 5-Channel Stereo, Party, and Mono.
Tuning Mode
When the Tuner is selected, use the Stage Manager to change stations.
Press the Stage Manager to enter the tuning mode. The currently selected
band will flash. Turn the knob clockwise to tune to FM, and counter
clockwise to select AM. Press the knob a second time to allow the tuning
frequency to be changed. Turn the knob clockwise to increase the frequenc
and turn it counter-clockwise to decrease the frequency. Press the knob a
third time, and the current preset will flash. Turn the knob clockwise to
increase the selected preset and counter clockwise to decrease. Press the
knob a fourth time to exit the Tuning mode. The Stage Manager will auto-
matically revert to Normal mode after 5 seconds of inactivity.
Menu Mode
Press the Enter button once to load the Setup Menu or twice to load the
Advanced Menu. Scroll through the menu items by turning the Stage
Manager knob and press it when you reach the one you want to adjust.
Again, you adjust that item by turning the Stage Manager knob. When a
menu item offers a Yes/No choice, turn the knob to the right to select Yes
and to the left to select No. Press the Enter button to exit the menu. Menu-
specific controls are listed below.
Speaker Configuration
Turn the Stage Manager to adjust the speaker setting. Press the knob to
advance to the next available speaker. Press the Enter button to exit the
Speaker Configuration Menu.
Level Settings
Turn the Stage Manager to increase or decrease the level of a selected
output channel. Press it to advance to the next channel. Press the Enter
button to exit the Level Settings Menu.
Speaker Distance
Turn the Stage Manager knob to increase or decrease the speaker
distance setting for an output channel. Press it to advance to the next
channel. Press the Enter button to exit the Speaker Distance Menu.
THX Setup Menu
Turn the Stage Manager to change the selected THX Setup menu. Press
the knob to select the currently displayed menu item for adjustment. Turn
the knob to the left or right to adjust the value of that item. Press the
Stage Manager or the Enter button to exit the selected menu.
Crossover Setup
Turn the Stage Manager to increase or decrease the crossover frequen-
cy for the speakers selected as Small and for the Subwoofer high-pass
filter. Press the Enter button to exit the Crossover Setup Menu.
Input Selection Buttons
Along the bottom of the front panel are eight buttons for source selection.
Once you have chosen an input, you can change the post-processing
mode by holding its selection button down and turning the Stage Manager
knob.
Mute Button and Mute LED
The Mute button toggles the Stage One’s outputs off and on. The Mute
LED will illuminate red when Mute is engaged. Turning the volume down
past –62dB will also mute the Stage One.
FRONT PANEL DISPLAY
Current Mode
The top left-hand corner of the display indicates the Stage One’s current
decoding mode or the post-processing being applied to a two-channel input
signal. The following decoding and post-processing modes are available in the
Stage One: Dolby Digital, DTS, Stereo, Pro Logic II, 5-Channel Stereo, DTS
Neo:6, Club, Party, and Mono.
Dolby Digital and DTS bitstreams can contain anywhere from 1.0 to 6.1 chan-
nels of information. (The ".1" indicates the presence or absence of a low-fre-
quency effects, or LFE, channel.) If the bitstream contains between 1.0 and
5.1 channels of information, the number will display to the right of the decod-
ing mode.
1.0
This indicates a mono signal. This signal is reproduced through the center
channel if a center speaker is present. Otherwise, it will be reproduced
equally through the left and right front output channels. If a center speaker
is present, you can force the signal to be routed to the left and right front
channels by pressing the Stereo button on the remote control.
2.0
This indicates that a two-channel signal is present. It will be reproduced
through the left and right front output channels. Two-channel signals can
also be modified by any of the Stage One’s post-processing modes. The
post-processing function will be indicated in the bottom left-hand portion of
the front-panel display.
STAGE ONE
THX SURROUND PREAMPLIFIER
8

3.0
This indicates a three-channel signal, which normally will be reproduced
through the left front, center, and right front output channels. If the system
contains no center speaker, the center channel signal will be split equally
between the left and right front output channels.
4.0
This indicates a four-channel signal, reproduced through the left and right
front and surround output channels.
5.0
This indicates a five-channel signal, which normally is reproduced through
the left and right front, center, and left and right surround channels.
.1
The ".1" indicates that the bitstream contains a low-frequency effects (LFE)
channel, which carries only bass information. In most systems, the LFE
channel is reproduced by a subwoofer. If there is no subwoofer, it will be
routed to speakers designated as Large.
The number of channels indicated on the front-panel display is based on the
number of channels of information present in the digital bitstream. It is not an
indication of a signal being present on a particular speaker and does not
reflect your system’s speaker configuration. For example, if you have set
"Center Speaker" and "Subwoofer" to "None" (not present) in the Speaker
Configuration Menu, the display will still show Dolby Digital 5.1 for a 5.1-chan-
nel Dolby Digital soundtrack.
When a Dolby Digital soundtrack contains surround back channel information,
the front-panel display will indicate THX Surround EX.
THX Surround EX will NOT be displayed if any of the following conditions
exist:
1. The Surround Back channels in the Speaker Configuration Menu are set
to None
2. THX Surround EX is turned to OFF in the THX Setup Menu
3. The soundtrack is flagged as not containing stereo surround information
THX Surround EX-encoded discs can be played on a system with any number
of speakers connected to it, but to take full advantage of the surround back
channel information a full complement of speakers must be connected, includ-
ing the Surround Back speakers.
When a DTS soundtrack contains surround back channel information, the
front-panel display will indicate DTS ES Matrix or DTS ES Discrete.
DTS ES soundtracks containing 6.1 channels of information are encoded in a
matrixed or discrete format. In a DTS ES Matrix soundtrack, the surround
back channel information is encoded into the primary surround channels,
extracted by the DSP module, and then sent to the Surround Back output
channels. DTS ES Discrete soundtracks contain a discrete surround back
channel signal, which is decoded by the DSP module and fed to the Surround
Back outputs.
The Stage One will not decode DTS ES if the Surround Back channels are set
to "None" in the Speaker Configuration Menu. DTS ES-encoded discs are
backward-compatible with a 5.1 system, so Surround Back channels are not
required to play them. However, the system cannot take advantage of the
extra surround channel unless, in addition to the primary surround speakers,
surround back speakers are connected.
2-Channel and 8-Channel Analog Passthrough
The top line of the display will indicate when the 8-Channel Analog input or
the Stereo Direct (2-channel passthrough) mode is selected.
Sampling Rate
For PCM signals (standard uncompressed digital output from a CD, DVD, or
laserdisc player or a digital satellite receiver), the display will show the sam-
pling frequency to the right of the post-processing mode.
Volume Level
The bottom right-hand corner of the display indicates the current master vol-
ume setting. The master volume ranges from –62dB to + 12dB, with 00dB as
the THX reference setting.
Current Input
The bottom left-hand side of the display indicates the currently selected input,
as long as there is no post processing information required to be displayed.
When the tuner is selected, this location will display the currently tuned radio
frequency.
Post-Processing
In some modes, the Stage One may need to display additional information,
such as the type of post-processing being applied. The following list presents
the Stage One modes and the post-processing or additional information avail-
able in each.
Dolby Pro Logic II has five possible decoding modes, selected from the
remote control’s Pro Logic II Modes page: Movie, Music, Panorama (indi-
cated as PAN), Matrix and Pro Logic. (See "Modes.")
Dolby Digital has 11 possible decoding modes, either selected from the
remote control’s Modes page or loaded as the default based on system set-
tings: PLII, Stereo, Mono, 5-Channel Stereo, Club, Party, DTS Neo:6, THX,
THX Surround EX, THX MusicMode, and THX Ultra2 Cine. Certain modes
may only be applied to Dolby Digital 2.0 signals that are not flagged as sur-
round encoded (See "Modes.")
DTS has 10 possible decoding modes, selected from the remote control’s
Modes page or loaded as the default based on system settings: PLII,
Stereo, Mono, 5-Channel Stereo, Club, Party, DTS Neo:6, THX, THX
MusicMode, and THX Ultra2 Cine. Certain modes may only be applied to
DTS 2.0 signals that are not flagged as surround encoded (See "Modes.")
9

REAR-PANEL INPUTS
Be certain that the Stage One preamp/processor, your amplifiers, and all
other associated components are powered OFF before making or break-
ing any connections to the preamplifier. Failure to do so may result in
damage to your speakers or other equipment.
1 ANALOG INPUTS
Seven stereo analog inputs are provided on the rear panel. The analog
inputs are labeled for convenience only, as any line-level source can be
plugged into any analog input. (See "Analog Input Level Control.")
2 DIGITAL INPUTS
Ten digital inputs are provided on the rear panel: seven Coaxial and three
Toslink optical. They can accept digital output from any device that delivers
a standard S/PDIF signal. On the TV, DVD, and CD/LD inputs, the Toslink
input takes precedence over the Coaxial input. Both may be connected
simultaneously.
3 COMPOSITE VIDEO INPUTS
Seven composite video inputs are provided on the rear panel. When an
A/V source is selected, the corresponding video input is also selected and
routed to the Monitor and Record outputs. Video inputs can also be select-
ed independently of the audio inputs. (See "Selecting a Separate Video
Source.")
4 S-VIDEO INPUTS
Seven S-video inputs are provided on the rear panel. When an A/V source
is selected, the corresponding video input is also selected and routed to
the Monitor and Record outputs. Video inputs can also be selected inde-
pendently from audio inputs. (See “Selecting a Separate Video Source.”)
5 COMPONENT VIDEO INPUTS
Three Component Video inputs are provided on the rear panel. These are
assigned to the TV, DVD and Video inputs and are high-definition compati-
ble. When one of these three sources is selected, the corresponding com-
ponent video input is also selected and routed to the Component Video
output. Video inputs can also be selected independently from audio inputs.
(See “Selecting a Separate Video Source.”)
6 RS-232 IN/OUT
The RS-232 port enables the Stage One to communicate with
external control devices or to connect with expansion boxes for future
upgradability. This port also allows for software upgrades to be installed
to the Stage One.
7 IR INPUT
The external IR input on the rear panel allows for an electrical connection
to an infrared receiver module.
8 MULTI-CHANNEL ANALOG INPUT
ADB-25 connector is provided on the rear panel to allow a six- or
eight-channel analog input from a DVD, DVD-Audio, or SACD player.
Compatible RCA to DB-25 adapters are readily available from many
manufacturers. (See “Input Connections.”) This input bypasses the DSP
module.
9 EXPANSION PORT
This port provides for expansion capability for future use should current
or future formats require a method of connection not currently supplied
on the Stage One.
10 AC INPUT
AC Power is supplied to the Stage One via a standard IEC three-wire
power cord.
11 FM ANTENNA INPUT
A75-ohm F-connector input is provided on the rear panel to attach to an
external FM antenna.
12 AM ANTENNA INPUT
Spring clips are provided on the rear panel to connect an external AM
loop antenna.
STAGE ONE
THX SURROUND PREAMPLIFIER
1
8
9
10
11
12
6
7
2
3
4
REAR-PANEL INPUTS
10
5

REAR-PANEL OUTPUTS
1 COMPONENT VIDEO OUTPUT
One component video output is provided to connect to a monitor with a
component video input. This output is active only for routing the three
Component Video inputs (TV, DVD and Video) connected to component
video sources.
2 S-VIDEO MONITOR/RECORD OUTPUT
Two outputs are provided for S-video signals to route them to your moni-
tor or recording device. The Stage One does not convert composite video
input signals to S-video, although both composite and S-video signals can
be used simultaneously.
3 COMPOSITE VIDEO MONITOR/RECORD OUTPUT
Two outputs are provided for composite video signals to route them to
your monitor or recording device. The Stage One does not convert com-
posite video signals to S-video, although both composite and S-video sig-
nals can be used simultaneously.
4 TOSLINK OPTICAL DIGITAL OUTPUT
AToslink optical digital audio output is provided on the rear panel. The
signal from the selected digital source is routed to the Toslink digital out-
put for recording purposes.
5 ANALOG RECORD OUTPUTS
Two sets of outputs are provided on the rear panel to connect to recording
devices, such as VCRs and tape decks. The analog signal from the
selected source is routed to both record outputs. (Be careful when
connecting these to a VCR line input if the VCR is the currently selected
source and line-in is selected on the VCR. This can cause a feedback
loop.)
6 PREAMPLIFIER OUTPUTS
RCA outputs are provided for each channel. Connect these to the inputs
of the corresponding power amplifier channels.
7 RS-232 IN/OUT
The RS-232 port enables the Stage One to communicate with external
control devices or to connect with expansion boxes for future
upgradability. This port also allows for software upgrades to be installed
to the Stage One.
8 12-VOLT DC OUTPUT
The 12-volt DC output can be used to trigger external devices that are
driven by a 12-volt continuous DC output (up to 100mA).
2
3
5
6
4
7
8
REAR-PANEL OUTPUTS
11
1

REMOTE CONTROL
The supplied Philips ProntoNEO®touchscreen remote control is pre-config-
ured for the Stage One. This programmable learning remote is enormously
flexible and can be customized to operate your entire audio/video system. The
remote has its own manual, which explains its operation in full detail. Be sure
to read the ProntoNEO manual as well as the descriptions below to get the
most from the remote control. The functions listed below apply only when the
Stage One is selected on the remote control.
HARD BUTTONS
1ADJUST
The Adjust button switches the remote control touchscreen to the
Adjustments page, which has buttons for jumping to the most commonly
used mode and system adjustment pages.
2SETUP
The Setup button switches the remote control to the Setup page, where
you can enter the system setup functions.
3 4 UP/DOWN
When in the menu system, the Up and Down buttons move between
menu items. In the Speaker Configuration, Level Setting, and Speaker
Distances menus, the Up and Down buttons change the channel selected
for adjustment. When the Stage One is in Normal mode and decoding
surround sound, the Up and Down buttons adjust the front/rear balance.
5 6 LEFT/RIGHT
Once you have selected a menu item, use the Left and Right buttons to
adjust the value of its setting. When the Stage One is in Normal mode
and playing a stereo signal, press the Left and Right buttons to adjust the
left/right balance.
7 8 VOL +/–
The Vol+ and Vol– buttons adjust the Stage One’s overall volume level.
910CH +/–
When the Stage One’s built-in tuner is selected, the CH+ and CH– but-
tons seek forward and back to the next station with enough signal
strength for clean reception.
11 ƒ
Pressing the F button brings the remote back to the input selection page.
12 MUTE
The Mute button toggles the Stage One’s audio output on and off. When
you are adjusting the Level Settings in the Setup menu, pressing the
Mute button will exit the menu without saving changes.
13 OK
Press the OK button to enter and exit menus.
14 MODE
Holding down the Mode button brings up the remote control’s setup
menu, which allows you to program the remote. For detailed instructions
on how to use this function, see the ProntoNEO manual.
15 DEVICE
Pressing the Device button brings up the top-level Device page, which is
where you select which component you want the remote to address.
Select the Stage One by pressing the Stage One button at the bottom of
the page.
16 17 PAGE UP/DOWN
On the left hand side of the remote, the Page Up and Down buttons
enable you to scroll through the pages that apply to the currently select-
ed device.
18 BACKLIGHT
Pressing the Backlight button lights up the touchscreen and hard buttons
so you can see them clearly in the dark. To adjust the touchscreen’s con-
trast, press the Page Up and Down buttons while holding down the
Backlight button.
STAGE ONE
THX SURROUND PREAMPLIFIER
1
3
4
2
79
10
12 11
13
15
14
18
5
16
17
6
8
12

POWER AND INPUT
SELECTION
There are separate power On and Off buttons for the
Stage One. Direct access buttons are available for
each of the eight source inputs, including the tuner.
The 8 Ch In button selects the 8-channel analog
input.
MODES PAGE
The Modes page provides Stage One post-processing adjustments and indi-
vidual buttons for selection of stereo direct, analog, and digital inputs.
Analog
This button forces the Stage One to process from the analog input. The Stage
One will remain locked onto the analog input until you select a new source,
press the Digital button, or power it off.
Digital
Choosing Digital forces the Stage One to process from the digital input,
regardless of whether or not a digital signal is present for the currently select-
ed source. The Stage One will remain locked onto the digital input until you
select a new source, press the Analog button, or power it off.
Stereo
When an analog or PCM digital signal is present for the currently selected
source, pressing the Stereo button decodes the signal in two-channel stereo
and sets the default for analog and PCM signals on the particular input to
stereo. When a Dolby Digital or DTS signal is selected, pressing the Stereo
Button will cause the Stage One to downmix multi-channel soundtracks for
reproduction by just the front left and right speakers.
Direct
Pressing the Direct button forces the Stage One into Stereo Direct mode and
sets Stereo Direct as the default mode for the currently selected source.
Stereo Direct bypasses all digital processing, enabling the Stage One to act
as a stereo analog preamplifier while still allowing subwoofer operation.
PLII
Pressing the PLII button when the signal for the currently selected source is
analog, PCM digital, Dolby Digital 2.0 or DTS 2.0 causes the Stage One to
apply Dolby Pro Logic II decoding to the signal. The Stage One will automati-
cally apply Dolby Pro Logic II decoding to Dolby Digital 2.0 signals that are
flagged as Dolby Surround encoded. Pressing the PLII button also jumps the
remote to the Pro Logic Modes page, where you can adjust the currently
selected Dolby Pro Logic II mode.
DTS Neo:6
Pressing the DTS Neo:6 button when the signal for the currently selected
source is analog, PCM digital, Dolby Digital 2.0 or DTS 2.0 applies the DTS
Neo:6 surround processing algorithm.
Club
Pressing the Club button when the signal for the currently selected source is
analog, PCM digital, Dolby Digital 2.0 or DTS 2.0 applies Club-mode process-
ing.
Mono
Pressing the Mono button when the signal for the currently selected source is
analog, PCM digital, Dolby Digital, or DTS will downmix all channels to mono
and send the resulting signal to the center speaker or, if the system has no
center speaker, the left and right front speakers.
5 Ch St
Pressing the 5 Ch St button when the signal for the currently selected source
is analog, PCM digital, Dolby Digital 2.0 or DTS 2.0 applies 5-Channel Stereo
processing.
Party
Pressing the Party button when the signal for the currently selected source is
analog, PCM digital, Dolby Digital 2.0 or DTS 2.0 applies Party-mode pro-
cessing.
TV DVD
VIDEO CD/LD
VCR TAPE
AUX TUNER
on off
8 Ch In
Analog Digital
Stereo Direct
PL II 5 Ch St
Party
DTS Neo
Mono
Club
13

ADJUSTMENTS
Pro Logic
Pressing the Pro Logic button switches the remote to the Pro Logic II Modes
page, where you can adjust the currently selected Dolby Pro Logic II mode.
Dolby Digital
Pressing the Dolby Digital button switches the remote to the Dolby Digital
page, where you can adjust the Dolby Digital Night Mode compression level.
THX
Pressing the THX button switches the remote to the THX page, where you
can adjust the THX options.
DTS
Pressing the DTS button switches the remote to the DTS page, where you
can adjust the DTS options.
Display
Pressing the Display button switches the remote to the Display Options page,
where you can turn the front panel display on and off and adjust the front
panel lighting.
On-the-Fly
Pressing the On-the-Fly button switches the remote to the On-the-Fly page,
where you can temporarily adjust center-channel and subwoofer levels to
compensate for variations in soundtracks.
Video
Pressing the Video button jumps the remote to the Separate Video Switching
page, where you can select the video input independently of the audio signal.
Tuner
Pressing the Tuner button switches the remote to the Tuner page, where you
can select the band, select a preset, or tune stations.
PRO LOGIC II MODES
The Pro Logic II Modes page allows you to select the
Dolby Pro Logic II mode. Five Pro Logic II modes are
available: Music, Movie, Panorama, Matrix and
Pro Logic.
PRO LOGIC II SETUP
The Pro Logic II Setup page enables you to adjust
Dolby Pro Logic II parameters. The following adjust-
ments are available: Center Channel Width and
Dimension. Changes are stored in memory and load
automatically when the Pro Logic Music or Panorama
modes are engaged.
DOLBY DIGITAL
The Dolby Digital page allows you to adjust the level
of compression in Dolby Digital.
DTS
The DTS page allows you to adjust the DTS Neo:6
mode.
THX
The THX Setup page allows THX processing to be
turned On and Off. When THX processing is on, the
Re-Equalization circuit can be turned on and off.
Once the Stage One is powered off, the Re-
Equalization circuit returns to the default state of ON.
STAGE ONE
THX SURROUND PREAMPLIFIER
Pg. 1
center
dimension
-+
-+
Low Medium
Night Off
Compression
Music Movie
Neo:6 Mode
On Off
THX On THX Off
Pg. 2
Re EQ
14
Pro Logic Dolby Dig
Adjustments
THX DTS
Display On the Fly
Video Tuner
Pro Logic
Pg. 2
Modes
Music Movie
Panorama Matrix

THX ASA/EX
The THX ASA and EX setup page allows the THX Advanced Speaker Array
and THX Surround EX modes to be adjusted. Available options for the
Advanced Speaker Array (ASA) mode are Ultra2 Cinema, THX MusicMode,
and Off. Ultra2 Cinema mode will be most appropriate for movie soundtracks
that are not Surround EX-encoded, while MusicMode will work best for multi-
channel music sources. The default setting for the ASA Mode menu is Ultra2
Cinema.
Available options for THX Surround EX are AUTO, ON, and OFF. In the AUTO
mode, THX Surround EX processing will occur when all Surround EX condi-
tions have been met, and the Dolby Digital bitstream contains the appropriate
flag to indicate that the soundtrack is Surround EX encoded. In the ON mode,
THX Surround EX processing will take place whenever all Surround EX condi-
tions have been met. In the OFF mode, THX Surround EX processing will not
take place even if the appropriate conditions are met. The default setting for
the Surround EX Mode menu is AUTO.
ASA and Surround EX adjustments can only be made when accessing 5.1
Dolby Digital and DTS soundtracks. These settings will only take effect when
the Stage One is configured with Surround Back speakers in the Speaker
Configuration menu.
TUNER
The Tuner page contains all the functions for control-
ling the built-in AM/FM tuner. AM and FM buttons are
provided to select the current band. Tuning Up and
Tuning Down buttons at the bottom of the page allow
for the frequency to be adjusted up and down. Ten
presets are available for each band, selected by the
buttons 1 through 10. Pressing and releasing the pre-
set button will tune the radio to the selected preset
station. Pressing and holding the preset button for
three seconds will store the currently selected station
as the preset.
SEPARATE VIDEO
The Separate Video switching page allows the video
input to be adjusted independently of the audio
source. This allows you to listen to one source, such
as the built-in tuner, while watching another.
SETUP
The setup page allows you to enter the Setup and
Advanced Setup menus and adjust the analog input
gain when necessary. Pressing Setup or Advanced
Setup will enter and exit the menus. The Up/Down,
Left/Right and OK buttons are used to navigate the
front panel menus. When accessing an analog input,
the analog input gain can be adjusted up and down
with the Input Gain + and – buttons. Pressing the Exit
Setup Menu button will change the remote control
back to the input selection screen.
ON-THE-FLY
The center channel and subwoofer levels can be
temporarily adjusted with the buttons on the On-the-
Fly page. These levels can be adjusted up or down to
compensate for differences in particular soundtracks.
The next time the mode is accessed, the settings
saved in memory will be loaded into the processor.
The need to continuously adjust the center channel
and subwoofer levels may be an indication that the
saved settings in the Level Settings menu are not cor-
rect.
DISPLAY
The Display page allows the front panel display to be
turned on and off, and the front panel lighting to be
turned On, Off, or set to Dim. The display setting will
revert back to the default ON setting the next time
the processor is turned on. The front panel lighting
setting is stored in memory.
Pg. 1
Off
Cinema Music
Surround EX Mode
EX Off
EX Auto
EX On
ASA Mode
center
subwoofer
On the Fly Adjustments
-+
-+
On Off
On Off
Display Settings
Light Settings
Dim
TV DVD
VIDEO CD/LD
VCR TAPE
AUX
Separate Video Switch
Setup
Advanced Setup
Exit Setup Menu
Input Gain
Shift
-+
123
45 6
789
10
FM AM
15

STAGE ONE
THX SURROUND PREAMPLIFIER
16
INPUT CONNECTIONS
The Stage One allows for analog, digital, and video outputs for seven sources
to be connected to the rear panel inputs. You also have the ability to switch
the Audio and Video signals independently of each other. For easiest opera-
tion, the digital, analog, and video outputs from each source should be
attached to the same source input (lined up vertically) on the rear panel of the
Stage One. If different types of video outputs are available, one of each type
(S-video, Composite, and Component/RGB/HDTV) can be connected to a sin-
gle source input. This ensures that video output will be available regardless of
the input selected on the monitor.
AC INPUT
Using the supplied IEC power cord, plug the Stage One into the wall outlet.
DIGITAL INPUTS
The rear panel of the Stage One provides ten digital inputs (three Toslink, and
seven Coaxial). Any S/PDIF digital output can be connected to any, or all ten
digital inputs. For inputs with both a Toslink and Coaxial digital connection,
Toslink takes precedence. It is possible to connect both a Toslink and a
Coaxial digital signal to a single source input, but only one will be operational
at a time. There is no need to "assign" the digital inputs, as one is provided
for each source connection. For easiest operation, the digital output of the
source should be connected to the same source input (lined up vertically) as
the analog and video outputs of the source.
ANALOG INPUTS
The rear panel of the Stage One provides seven stereo analog line level
inputs. The analog output of any line level source can be connected to any, or
all of the stereo analog inputs. The input gain of the analog inputs should be
adjusted for each analog source that you have connected. For optimum per-
formance, the gain should be adjusted to the highest point before clipping
occurs. (See “Advanced Features.”)
VIDEO INPUTS
The rear panel of the Stage One provides 17 Video inputs (seven composite,
seven S-video and three component). The Stage One does not perform any
video conversion. For example, if you connect the S-video output of a DVD
player to the Stage One, that signal will only be available at the S-video out-
puts.
MULTI-CHANNEL ANALOG INPUT
The Stage One provides an 8-Channel Analog Input. This DB-25 connector
can be used to connect the analog outputs from a DVD player with a built-in
decoder. The 8-Channel Analog input is passed directly to the analog pream-
plifier section. Individual channel level adjustment, as well as overall level
adjustment, is available for this input.
ANTENNA INPUT
Spring clips for an AM loop antenna, and a coaxial type terminal for a 75-ohm
FM antenna connection are provided on the rear panel to allow the built-in
AM/FM tuner to be connected to an antenna.
S VIDEO
OUTPUT
ANALOG
OUTPUT
DIGITAL
OUTPUT
COMPONENT
OUT SAT
DIGITAL
OUTPUT
ANALOG
OUTPUT
ANALOG
OUTPUT
COMPOSITE
VIDEO OUTPUT
COMPONENT
VIDEO OUT
S VIDEO
INPUT COMPONENT
INPUT
SATELLITE CD PLAYER
DVD PLAYER VCR TELEVISION
DIGITAL
OUTPUT
S VIDEO
OUTPUT
ANALOG
OUTPUT
COMPOSITE
VIDEO INPUT
ANALOG
INPUT
S VIDEO
INPUT
S VIDEO
OUTPUT
COMPOSITE
VIDEO OUTPUT
COMPOSITE
VISEO INPUT
AM ANTENNA FM ANTENNA
Unbalanced DB-25 Pin Assignments
PIN
1
2
3
4
5
6
7
8
9, 10
11, 12, 13
14
15
16
17
18
19
20
21
22
23, 24, 25
ASSIGNMENT
Left positive
Center positive
Right positive
Subwoofer positive
Surround left positive
Surround right positive
Surround back left positive
Surround back right positive
Shield drains
No connection
Left ground
Center ground
Right ground
Subwoofer ground
Surround left ground
Surround right ground
Surround back left ground
Surround back right ground
Shield drain
No connection
1
13
25 14

SPEAKER PLACEMENT AND
CONFIGURATION
The number and placement of speakers is a very critical part of the function of
the Stage One. While you can certainly use the Stage One in systems with as
few as two main left and right speakers, you will not be able to realize the full
surround sound potential of the processor without proper set-up of a complete
surround speaker package. The following text and diagrams describe how to
place your speakers for THX Surround EX playback.
Please consult the owner’s manuals for your speakers and amplifier to
ensure correct connections. Make sure the power to your amplifier and
the Stage One are off before making or breaking any connections.
Failure to do so could result in damage to your equipment.
Front Left and Right Speakers
These are the primary speakers in the system. They function as the left and
right speakers in a stereo configuration and as the front left and right speak-
ers in a surround speaker set-up. They should be placed to left of and to the
right of your video monitor.
Center Channel Speaker
The center channel speaker functions as the primary sound source for a sur-
round sound system. It should be placed as close to the video monitor as
possible – typically on top of the monitor. The center channel localizes all
on-screen dialog, action and effects for realistic sonic effect.
Surround Left and Right Speakers
The surround left and right speakers function as the dimensional speakers in
a surround speaker set-up. They reproduce the ambience and three-dimen-
sional movement required for realistic playback of surround encoded source
material. Ideally, these speakers should be placed to the left side and right
side of the primary listening position at a height of 0.5-1 meter above the lis-
tener’s ears.
Surround Back Left and Right Speakers
The surround back left and right speakers are necessary for optimal playback
of THX Surround EX and DTS ES-encoded material. They add additional
ambience and effects to the soundfield, further enhancing the movie theater
experience in your home. These speakers should be placed to the rear of the
listening position at a height of 0.5-1 meter above the listener’s ears.
Subwoofer
The subwoofer reproduces all of the deep bass that brings home the sonic
realism of a movie soundtrack. It can also reproduce bass response that has
been redirected from other speakers that are too small to do so. The sub-
woofer is typically placed along the front wall of the listening room in either the
right or left corner. Placement can dramatically affect the performance of this
speaker. Consult your subwoofer owner’s manual or the manufacturer for
assistance in set-up and placement of this speaker.
SL SR
SBL SBR
LCR
TV
S
17
L R
SL SR
SBL
SBR
C
S

SYSTEM SETUP
The Stage One Setup Menu is a quick and easy step-by-step guide to configur-
ing your system. You can access and navigate the Setup Menu from the remote
control or by using the Stage Manager and Enter button on the front panel.
When you complete a setup item, the system will automatically advance to the
next selection until setup is complete. It will then revert to the initial menu
.
Remote Control System Setup
With the ProntoNEO, select the Setup button to enter the Setup Menu. The Up and
Down buttons change the currently selected menu or option and the Left and Right
buttons change the setting. Use the OK button to enter or exit a particular menu.
Front-Panel System Setup
Although most of the instructions below are primarily for operation from the
remote control, you can use the Stage Manager and the Enter button to set up
the Stage One completely from the front panel. Press the Enter button to enter
and exit the Setup Menu. Turn the Stage Manager knob to the left or right to
make choices or adjustments in the selected menu. Press the Stage Manager
knob to enter a particular menu. When applicable, each subsequent press of
the Stage Manager will advance to the next channel or parameter. Press the
Enter button to exit a menu.
SETUP MENU
Press the Setup button on the remote or the Enter button on the front panel to
begin the setup procedure.
SPEAKER CONFIGURATION
The Speaker Configuration menu enables you to adjust the bass management
of your system. Press the remote OK button or front-panel Stage Manager to
enter the Speaker Configuration menu.
Front Speakers
Use the Left and Right buttons on the remote control or Stage Manager knob
to configure the front left and right front speakers as Large or Small. Select
Small (THX) when the front left and right speakers have limited bass response
or if you simply want the bass from all channels to go to a subwoofer. Select
Large for full low-frequency output to the front left and right speakers. The
default THX setting for the front left and right loudspeakers is Small, which
reroutes bass below the crossover frequency to the subwoofer output. (The
crossover frequency can be adjusted in a subsequent menu.) Once you have
selected the correct speaker designation, press the Up button or the Stage
Manager to move to Center Speaker configuration.
Center Speaker
The center speaker can be configured as Large, Small (THX), or None. If you
select Small, the Stage One will reroute bass below the crossover frequency
from the center channel to the subwoofer output if there is a subwoofer in the
system; if there is no subwoofer and the front left and right speakers are
configured as Large, bass from the center channel will be split between the
front left and right speakers. If you do not have a center speaker, select None,
which will split the center-channel output between the front left and right
speakers. The default THX setting for the center channel is Small. Use the
remote’s Left and Right buttons or the Stage Manager knob to select the
desired setting. Then press the Up button on the remote control or the Stage
Manager on the front panel to move to Surround Speaker configuration.
Surround Speakers
The Stage One gives you three choices for number of surround speakers—None,
One, or Two—and two choices for type—Large or Small (THX). If you select Large,
the surround speakers will receive full-range signals. Selecting Small will redirect
bass in the surround channels below the crossover frequency to the subwoofer out-
put if there is a subwoofer in the system; if there isn’t a subwoofer, bass will be split
between the front left and right speakers if they are configured as Large. The
default THX setting for the surround speakers is 2 Small. Use the Left and Right
buttons on the remote control or the Stage Manager on the front panel to select the
Surround Speakers setting. Once you have chosen the correct speaker designa-
tion, press the Up button on the remote control or the Stage Manager knob on the
front panel to move to Surround Back Speaker configuration.
Surround Back Speakers
If you select None in surround speaker configuration, the Stage One will auto-
matically set the surround back speaker configuration to None. If you have both
surround and surround back speakers, your only choice for this setting will be to
choose the quantity–None, One or Two–as the size configuration will be set the
same as that of the surround speakers. If your surround speakers are set to
Large, you should make sure your surround back speakers can handle a
full-range signal as well. If they cannot, you should set the surround speakers
size to Small so that the bass for all of these speakers is redirected to the sub-
woofer. Use the Left and Right buttons on the remote or the Stage Manager knob
to select the correct surround back speaker setting. Then press the up button on
the remote or the Stage Manager knob to move to Subwoofer configuration.
Subwoofer
There are three options for the subwoofer setting—No, Yes, and Ultra2. If your
system does not have a subwoofer, choose No. If it has a THX Ultra2-certified
subwoofer or a subwoofer that is capable of reproducing frequencies down to
20Hz, choose Ultra2. If it has a subwoofer that is not THX Ultra2 certified and
not capable of reproducing frequencies down to 20Hz, choose Yes. The sub-
woofer will reproduce the low-frequency effects (LFE) channel of Dolby Digital
and DTS soundtracks as well as any bass rerouted from speakers designated
as Small. A subwoofer signal is also created during Stereo and Pro Logic II
playback. Use the Left and Right buttons on the remote control or the Stage
Manager knob on the front panel to select the correct subwoofer setting. Then
press the OK button on the remote or the front-panel Enter button to exit the
Speaker Configuration menu and continue to the Level Settings menu.
STAGE ONE
THX SURROUND PREAMPLIFIER
18

19
LEVEL SETTINGS
The most accurate method for setting the relative levels of the speakers is to
use the Stage One’s calibration signal in conjunction with a sound-pressure
level (SPL) meter. The Level Settings menu will begin with the test signal set
at a predetermined output level. THX suggests that the output of each chan-
nel be set to 75dB, read from the SPL meter at the listening position. (The
meter should be set to slow response and C-weighting, with the microphone
at seated ear height and pointed toward the ceiling. A camera tripod can be
helpful for this purpose.) If you do not use an SPL meter, set the levels by ear
so that the calibration signal sounds equally loud through all the speakers
except the subwoofer. Because our ears are much less sensitive at low fre-
quencies than at middle ones, setting the subwoofer to an audibly equal level
on the test signal will make it too loud on program material. If you must set
levels by ear, adjust the subwoofer level for a natural tonal balance on familiar
music recordings that contain substantial bass. The test signal will either
rotate from speaker to speaker at two-second intervals or stay locked to the
selected speaker, depending on the setting of the Scroll Test Tones menu in
the Advanced Menus. (See "Advanced Menus.") The test signal and level-set-
ting options will be available only for speakers selected as present in the
Speaker Configuration menu.
Press the OK button on the remote control or the front-panel Stage Manager
to enter the Level Settings menu.
Front Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the front left speaker to 75dB on the SPL
meter. Press the Up button on the remote or the front-panel Stage Manager to
proceed to center channel level setting.
Center
Press the Left and Right buttons on the remote or turn the Stage Manager
knob to adjust the level of the center speaker (if present) to 75dB. Press the
Up button on the remote or the front-panel Stage Manager to proceed to front
right channel level setting.
Front Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the front right speaker to 75dB. Press the
Up button on the remote or the front-panel Stage Manager to proceed to sur-
round right channel level setting.
Surround Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround right speaker (if present) to
75dB. Press the Up button on the remote or the Stage Manager to proceed to
surround back right channel level setting.
Surround Back Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround back right speaker (if pres-
ent) to 75dB. Press the Up button on the remote or the Stage Manager to pro-
ceed to surround back left channel level setting.
Surround Back Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround back left speaker (if present)
to 75dB. Press the Up button on the remote or the Stage Manager to proceed
to surround left channel level setting.
Surround Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround left speaker (if present) to
75dB. Press the Up button on the remote or the Stage Manager to proceed to
subwoofer level setting.
Subwoofer
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the subwoofer (if present) to 75dB. Press
the OK button on the remote or the Enter button on the front panel to exit the
Level Setting menu and proceed to the Speaker Distances menu.

20
SPEAKER DISTANCES
In the Speaker Distances menu, you will enter the distance from each speaker
to the listening position. This enables the Stage One’s DSP engine to set
internal delays for time alignment of the speakers in the system to within
1/12th of a millisecond. Only speakers listed as present in the Speaker
Configuration menu will appear in this menu.
Press the OK on the remote button or the front-panel Stage Manager knob to
enter the Speaker Distances menu.
Front Left
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the front left speaker to the
listening position. Press the Up button on the remote or the Stage Manager
knob to advance to distance setting for the center speaker (if present).
Center
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the center speaker (if pres-
ent) to the listening position. Press the Up button on the remote or the Stage
Manager knob to advance to distance setting for the front right speaker.
Front Right
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the front right speaker to
the listening position. Press the Up button on the remote or the Stage
Manager knob to advance to distance setting for the right surround speaker
(if present).
Surround Right
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the right surround speaker
(if present) to the listening position. Press the Up button on the remote or the
Stage Manager knob to advance distance setting for the surround back right
speaker (if present).
Surround Back Right
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the surround back right
speaker (if present) to the listening position. Press the Up button on the
remote or the Stage Manager knob to advance to distance setting for the sur-
round back left speaker (if present).
Surround Back Left
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the surround back left
speaker (if present) to the listening position. Press the Up button on the
remote or the Stage Manager knob to advance to distance setting for the sur-
round left speaker (if present).
Surround Left
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the left surround speaker to
the listening position. Press the Up button on the remote or the Stage
Manager knob to advance to distance setting for the Subwoofer (if present).
Subwoofer
Use the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to set the distance measured from the subwoofer (if present) to
the listening position. Press the OK button on the remote or the Stage
Manager knob to exit the Speaker Distances menu and proceed to the THX
Setup menu.
STAGE ONE
THX SURROUND PREAMPLIFIER
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