Velodyne OPTIMUM-8 - DATASHEET 2 User manual

OpTIMUM SERIES
QPTIMUM .. 8
QPTIMUM .. 10
QPTIMUM .. 12
USER'S
MANUAL
High Output Digital EQ Subwoofer
f~(
Velodyne

IMPORTANT SAFETY INSTRUCTIONS
A CAUTION A ~
~ ~ \0'
Caution
To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to
qualified service personnel.
The lightning flash with arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage"
within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point symbol is intended to alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the subwoofer.
1. Read Instructions - All safety and operating instructions should be read before the product is operated.
2. Retain Instructions - The safety and operating instructions should be retained for future reference.
3. Heed Warnings - All warnings on the product and in the operating instructions should be adhered to.
4. Follow Instructions - All operating and use instructions should be followed.
5. Water and Moisture - The product should not be used near water - for example, near a bathtub, washbowl, kitchen
sink, laundry tub, in a wet basement, near a swimming pool or the like.
6. Carts and Stands - The product should be used only with a cart or stand recommended by
the manufacturer.
7. Wall or Ceiling Mounting - The product should be mounted to a wall or ceiling only as recommended by
the manufacturer.
8. Ventilation - The product should be situated so that its location or position does not interfere with its proper
ventilation. For example, the product should not be situated on a bed, sofa, rug, or similar surface that may block the
ventilation openings; or placed in a built-in installation such as a bookcase or cabinet that may impede the flow of air
through the ventilation openings.
9. Heat - The product should be situated away from heat sources such as radiators, heat registers, stoves, or other
products that produce heat.
10. Power Sources - The product should be connected to a power supply only of the type described in the operating
instructions or as marked on the product.
11. Grounding or Polarization - This product may be equipped with a polarized alternating-current line plug (a plug
having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature.
If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact
your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug.
12. 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 at which they exit from the product.
13. Cleaning - The product should be cleaned only as recommended by the manufacturer.
14. Nonuse Periods - The power cord of the product should be unplugged from the outlet when left unused for a long
period of time.
15. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled onto
the enclosure.
16. Damage Requiring Service - The product should be serviced by qualified service personnel when:
a. The power-supply cord or plug has been damaged.
b. Objects have fallen or liquid has been spilled into the product.
c. The product has been exposed to rain.
d. The product does not appear to operate normally or exhibits a marked change in performance.
e. The product has been dropped or damaged.
17. Servicing - The user should not attempt to service the product beyond what is described in the operating
instructions. All other servicing should be referred to qualified service personnel. Refer all servicing to qualified service
personnel. Servicing is required when the apparatus has been damaged in any way, such as a power-supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed
to rain or moisture, does not operate normally, or has been dropped.
18. Lightning - For added protection for the product during a lightning storm or when it is left unattended and unused
for long periods of time, unplug it from the wall outlet.
19. Overloading - Do not overload wall outlets, extension cords or integral convenience receptacles as this can result
in a risk of fire or electric shock.
20. Attachments - Only use attachments and accessories specified by the manufacturer.
21. Voltage - Insure that the subwoofer is only connected to the rated source voltage. Do not connect the 120-volt
version to 230-volts or vice-versa. This will result in damage to the subwoofer and possible injury to the user.
CAUTION: To prevent electrical shock, match wide blade of plug to wide slot, fully inserted.
WWW.VELODYNE.COM
Optimum User's Manual

TABLE OF CONTENTS
Congratulations .
Installation .
Front Panel Features .
Rear Panel Connections .
Rear Panel Connections -Detailed Explanation . . .
Interconnect Cables .... ....... . .
Usage . . . . . . . . .
Care of Your Subwoofer . .
Troubleshooting and Service . .
Specifications . . . .
.. . .
Velodyne Products . . . . .
.. . .
· 1
· 3
· 5
· 7
· 9
· 10
.. .. 11
· 15
· 15
· 16
· 18
WWW.VELODYNE.COM
Optimum User's Manual ii

CONGRATULATIONS
Congratulations on your purchase of aVelodyne Optimum subwoofer. This system represents
the state-of-the-art in low frequency reprodL!ccion. Please, read and follow the instructions below
to insure safe and proper system operation.
Warning!
To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid
electrical shock, do
not open speaker enclosure or amp chassis cover. Please observe all
warnings on the equipment itself. There are no user serviceable parts inside. Please refer all
service questions to your authorized Velodyne dealer.
Prior to Installation
Please unpack the system carefully. Please save the carton and all packaging materials
for future use. Record the serial number in the space provided on page 17 of this manual for
future reference.
PRODUCT FEATURES
•DSP-Controlled
• 4 selectable
preset modes for customized listening
•Automatic 6-band
room equalizer with microphone included
•Night-mode setting
•
Mute control
•
Woofer
-8" (6.5" piston diameter) subwoofer with 2.5" high-temp voice coil and
107 ounce magnet/204 ounce motor structure (Optimum-8)
-
10" (8" piston diameter) subwoofer with 3" voice coil and 162 ounce magnet/
346 ounce motor structure (Optimum-10)
-
12" (9.7" piston diameter) subwoofer with 3" voice coil and 162 ounce magnet/
346 ounce motor structure (Optimum-12)
•Built-in
2400 watts Dynamic/1200 watts RMS high efficiency Class 0amplifier
•Adjustable
(40 to 120 Hz) low-pass crossover (defeatable)
•Line-level
(RCA) inputs and outputs
•Speaker-level inputs with five way binding
post connections
•Signal sensing auto
turn on/off (defeatable)
•Variable volume control
•Selectable phase control (0,
90, 180 or 270 degrees)
•Frequency response of
28-120 Hz (Optimum-8), 24-120Hz (Optimum-10),
22-120Hz (Optimum-12),
•Magnetically shielded
for video use (Optimum-10 and Optimum-12)
•Multiple staggered low-pass crossovers;
12 dB/octave initial, 48 dB/octave ultimate
•Driver Displacement Control
circuit to prevent over excursion and amp clipping
•Blue level indicator
LED
•High-excursion EPDM rubber surround
•Oversized spider
for linearity at high excursion
•Hand-rubbed black lacquer
or cherry veneer cabinet
WWW.VELODYNE.COM
Optimum User's Manual 1

Prepare for Installation
Your new Velodyne subwoofer provides for anumber of installation options. Read all of the
installation information below
in order to determine which installation option is best for your
system. Remember
to perform all installation procedures with system power turned off
to prevent possible damage.
Placement
The first step in installing your new Optimum sub is to determine where it will be placed in the
room. Unpack the system carefully and use the following guidelines
in order to find the best
room placement option.
True subwoofers operate
at extremely low frequencies which are primarily omni-directional.
Keep
in mind that frequency response and output level can be drastically influenced by
placement, depending on the acoustic properties of the listening room. To obtain the best
output from your subwoofer,
try placing it within afoot of acorner. This location will offer the
greatest output levels and maximize low frequency extension. If
at all possible, your subwoofer
should
be placed along awall. The worst location for asubwoofer is typically far away from any
walls and close
to the center of your room. Avoid these locations when possible. When using
apair of Velodyne subwoofers
in stereo, it is preferable to feed each subwoofer with one
channel and place each subwoofer near the satellite of the same channel.
Depending
on the size and type of furnishings in the room, perfect placement may not be
possible. Finding the best location within your environment will likely require some
experimentation.
We suggest you experiment with the location during setup to find what sounds
best
to you when seated in your typical listening position.
Regardless of where
you install your Velodyne subwoofer, it must remain in an upright position
[woofer facing forward). Using, shipping
or storing the subwoofer in any other position for an
extended period of time may result in damage to the unit not covered by warranty.
Caution!
This subwoofer has electronics built into the cabinet. 00 not place the cabinet next to sources
of heat such as furnace registers, radiators, etc. 00 not place the unit near sources of
excessive moisture such as evaporative coolers, humidifiers, etc. The power cord should be
routed
in such away that it will not be walked on, pinched or compressed in any way that could
result
in damage to the insulation or wire.
Although the Velodyne Optimum-10 and the Optimum-12 are magnetically shielded,
the
Optimum-B subwoofer is NOT magnetically shielded. Should you find it necessary to use it with
an older CRT monitor or TV, keep it at least two feet from the monitor. Experiment for correct
distance by minimizing distortion of the picture and colors.
WWW.VELODYNE.COM
Optimum User's Manual 2

INSTALLATION
Inputs
Your new subwoofer is equipped with speaker-level and line-level inputs. Use the LINE LEVEL
jacks when connecting your subwoofer to apre-amp, signal processor [such as LFE out], line-
level crossover,
or receiver with pre-amp level outputs. When using the line level jacks, some
receivers may
not provide enough signal to have the unit's auto-on feature operate properly.
Additionally,
this lack of signal may also cause the subwoofer to produce less output than it is
capable of.
To alleviate this condition, we recommend the following steps:
1) If using line level jacks, BOTH
THE LEFT AND RIGHT INPUT SHOULD ALWAYS BE USED -
never use
just the left or just the right input. If using line level connections from a
preamp or signal processor, use both Left and Right inputs from your preprocessor or
preamp and connect them to the Left and Right inputs on your subwoofer.
2) If using areceiver with
LFE out, be sure the LFE channel is sending adequate signal to the
subwoofer. The subwoofer's default volume setting is 30 on a 1-80 scale [roughly 1/3
volume). Adjust the LFE channel on your receiver or processor to achieve the desired bass
output. See your receiver
or processor's owner's manual for more information.
Volume Control
This control allows you to balance the output from the subwoofer to the main speakers in your
system. This control should
be set to achieve similar output levels from both the main speakers
and subwoofer when listening
to music. The default volume setting is 30 on a 1-80 scale.
Warning:
Some manufacturers preset their receivers with the Sub-Out channel signal at a minimum level.
It is very important to verify that your receiver Sub-Out channel is set to the same output level
as your front right and left channels. Refer to your receiver manual for the individual channel
level
adjustment procedure. If your receiver Sub-Out channel is set too low, the subwoofer may
appear to have aweak output, it may sound noisy or distorted, and the Auto On/Off feature
may not operate properly
Low-pass Crossover - 40 to 120 Hz
All inputs sum the left and right channels together, with the resulting signal passing through an
adjustable low-pass crossover before being amplified. The crossover control allows you
to adjust
the upper limit of the subwoofer's frequency response from 40 to 1 20 Hz. The subwoofer's
response will begin rolling off above
the frequency you set this control to. You should set the
crossover frequency to obtain asmooth and seamless transition from the subwoofer to the
main speakers in your system. If your main speakers are smaller with limited low frequency
output, you may wish
to choose ahigher frequency [such as 100 - 120 Hz) than you would with
larger speakers which have greater low frequency output. The default crossover setting is
80 Hz. With larger speakers, you may want to set this even lower, for example 70 Hz.
WWW.VELODYNE.COM
Optimum User's Manual 3

Phase Adjustment· 0°/90°/180°/270°
This control allows you to change the phase of the subwoofer's output signal to correct for any
possible mismatch and resulting cancellation between the subwoofer and your main
speakers/amplifier.
To adjust, simply listen to the system with music playing, then depress the
various phase switches
on the remote control and listen for achange in mid-bass frequency
output. The
correct position will have a greater amount of apparent mid-bass frequency output.
If the settings sound similar, we recommend the "0" position. See the remote control section
for more information.
Auto Turn on Function
The subwoofer will turn itself on automatically when an audio signal is present. If no signal is
present
for approximately eight minutes, the unit will switch to standby mode (blank LED). While
in standby mode, your subwoofer will draw very minimal power. Your sub is shipped in
the "INACTIVE" (always on) position. In order to activate the circuit, change the switch
to
"ACTIVE".
Warning:
If the Sub-Out channel signal level from your receiver is too weak, this feature will not operate
properly and
shut the subwoofer off while you are listening to it. To correct this, see the
VOLUME
CONTROL section on previous page.
WWW.VELODYNE.COM
Optimum User's Manual 4

FRONT PANEL FEATURES
Figure 1. Optimum Front Panel Features
Figure 1shows the features on the front panel of the Optimum.
WWW.VELODYNE.COM
Optimum User's Manual 5

(1) Power Switch
This button forces your Optimum subwoofer into standby mode. The numeric LED shuts off
and the sub puts out
no power. The sub will remain in this mode until the POWER button is
pressed again. To fully deactivate (i.e. power button) the sub, use the main power switch on
the back panel.
(2) LED Numeric Display
This LED supplies information on volume, crossover, presets, and other information. The
"Light" button
on the remote deactivates this display.
(3) Volume Control
These buttons allow you to balance the output from the subwoofer to the main speakers in
your system. The volume should be set to achieve similar volume level of both the main
speakers and subwoofer. The default volume
is 30. The upper button increases the
subwoofer level and the lower button decreases it.
Note: Volume can also be controllable by using the supplied remote.
WARNING: Some manufacturers preset their receivers with the Sub-Out fA. K.A. LFE)
channel signal at aminimum level. It is very important to verify that your receiver Sub-Out
channel is
set to the same output level as your front right and left channels. Refer to your
receiver manual for the individual channel level adjustment procedure.
If your receiver
Sub-Out channel is
set too low, the subwoofer may appear to have aweak output, it may
sound noisy
or distorted, and the Auto On/Off feature may not operate properly.
(4) Mic Input
Connect the supplied microphone for the Auto-EQ feature to this mini-jack input.
WWW.VELODYNE.COM
Optimum User's Manual II]

REAR PANEL CONNECTIONS
@@
VelodyneVOLUME
DOWN •
@
80 Hz
UP •
@
:@:
DIRECT 40 Hz
LOW-PASS
CROSSOVER
@
@
@
@
AUTO ON/OFF
ACTlVE~ INACTIVE
@
R L
~ ~ OUTPUT
@
~0 INPUT
'-LFE
SERIAL #LABEL
VELODYNE ACOUSTICS. INC.
@
SPEAKER LEVEL INPUT
+R L +
12V
TRIGGER
IR INPUT
@
@
@ '6~~~~gTJZ~~~~ ~MtS:x?6~~E
THIS APPliANCE TO RAIN OR MOISTURE.
A~rel~~~~·.A
AVI s: RISQUE DE CHOC ELECTAIQUE-NE PAS OUVAIA
@
POWER
@
@ON
I
0
OFF
@
117V-
60Hz
8A
@@
Figure 2. Optimum Rear Panel Connections
Figure 2shows the connections on the rear panel of the Optimum.
WWW.VELODYNE.COM
Optimum User's Manual 7

Following are brief descriptions of the connections described in Figure 2. More detail on these
connections can
be found in the next section.
(1) LOW-PASS CROSSOVER
Use this knob to select the frequency above which you wish to roll off the signal to the
subwoofer. When the knob is turned all the way to the left, the Subwoofer Direct feature
is invoked and
the subwoofer plays all frequencies up to 200 Hz.
(2) VOLUME Control
This control allows you to balance the output from the subwoofer to the main speakers in
your system. This control should be set to achieve similar volume level from between both
the main speakers and subwoofer. When pressing volume up or down, set the level while
watching
the LED display for reference. The upper button increases the subwoofer level and
the lower button decreases it.
Note: Volume is also controllable by using the supplied remote. When defaults are restored,
the default volume setting is 30 out of 80.
(3) AUTO ON/OFF Switch
Use this switch to select between auto-on [active) and constant on [auto-on
inactive) operation.
(4) LINE OUTPUT
Connect these jacks to the LINE IN amp input to use the Optimum subwoofer's internal high
pass crossover. See below
for a more detailed explanation of this crossover.
(5) LINE INPUT /LFE Input
Connect these jacks to the LINE OUT preamp output, LFE output or subwoofer output jacks
of your
receiver/processor. If using the LFE output from your receiver or processor, plug
the single cable into
the "L" - LFE input or for more signal, use a"Y" connector [not included)
and feed
the signal into both "R" and "L" inputs.
(6) SPEAKER LEVEL INPUT Terminals
Connect these input terminals to the speaker output terminals of your amplifier or receiver.
If
you use this method of connection, when you go to the receiver speaker set up menu,
make
sure you select the large speaker option.
(7) IR Input
This is aconnection to allow you to purchase athird-party infrared remote sensor or an
extended cable for placement closer to your other remote controlled equipment. This keeps
you from awkward control angles using the infrared remote control.
(8) 12v Trigger
When this mini jack is connected, the unit remains in power-off mode until 12 volts IS
supplied across the two leads. There is no polarity requirement.
WWW.VELODYNE.COM
Optimum User's Manual 8

REAR PANEL CONNECTIONS· DETAILED EXPLANATION
Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the
RCA/Phono type "INPUT" jacks when connecting your subwoofer
to apre-amp, signal
processor, or line-level crossover. The
"SPEAKER LEVEL INPUT" jacks connect directly to the
speaker outputs of
an integrated amplifier or receiver. Your amplifier section will notice no
additional loading effects when you use these inputs because of their high impedance.
Note: Do not use both the RCA/Phono "INPUT" connections and "SPEAKER LEVEL INPUT"
connections simultaneously.
Low-Pass Crossover
Both sets of inputs sum the left and right channels together and the resulting signal is passed
through
an adjustable low-pass crossover before being amplified. The crossover control allows
you to adjust the upper limit of the subwoofer's frequency response from 40 to 1 20 Hz. The
subwoofer's response will begin rolling off above the frequency you set this control to. [See note
above about frequency limits.)
You should set the crossover frequency to obtain asmooth and seamless transition from the
subwoofer
to the main speakers in your system. Do this by listening to the blend between your
satellites and subwoofer using familiar material.
If your main speakers are smaller units with
limited low frequency output,
you may wish to choose ahigher frequency [such as 100 -120 Hz)
than you would with larger speakers which have greater low frequency output. With larger
speakers,
you might start with this control set lower, such as 70 Hz.
Subwoofer Direct
Subwoofer Direct is the leftmost setting on the low-pass crossover knob and will allow
frequencies
up to 200 Hz into the subwoofer. If you are not using an external crossover, we
recommend that you use the one provided within the subwoofer for optimum performance.
Caution!!!
To avoid damage to your main amplifier, be sure to maintain correct polarity when making all
connections. Red [positive) to red, and black [negative) to black. Be sure that all connections
are tight,
and that there are no loose strands or frayed wires.
Power Switch
The master power switch is located on the middle left half of the unit. This rocker style switch is
the main on/off for the unit. This switch should be set to position 1for on [up), 0for off [down).
WWW.VELODYNE.COM
Optimum User's Manual .9

A Word About Your Receiver's Crossover and
the Velodyne Optimum Subwoofer Crossover
Your Velodyne Optimum subwoofer is designed to operate using the full range audio signal for
input when using the built-in crossover (controlled by the dial on the back panel). Many home
theater processors/receivers (Dolby Digital®, DTS®, THX®) have a"subwoofer out" jack that
performs this same function and are designed to be used with apowered subwoofer.
In these installations, you may want to bypass the crossover in either the processor or the
Velodyne subwoofer. In some cases, you may want to use BOTH crossovers. To do this, you can
use both your processor's crossover and the one internal
to the Velodyne sub. You should
stagger the frequencies, (i.e., 120 Hz subwoofer, 80 Hz processor) for best results.
To bypass the subwoofer's internal crossover when the unit is being fed alow pass signal from
another crossover, simply rotate the knob marked "LOW-PASS CROSSOVER" on the rear panel
of
the subwoofer, turning it counterclockwise to the leftmost position. This will eliminate the
internal crossover from the signal path.
Note: If you are not using an external crossover, you should use the built-in crossover for the
best performance. When using asingle RCA sub out from the processor, connect to the
"L" - LFE input on the subwoofer, or for more signal, use a"Y" connector and feed the signal
into both "R" and "L" inputs.
INTERCONNECT CABLES
When installing your new Velodyne subwoofer using the line-level connections, you should always
use shielded phono cables. There are many
decent cables available today, most any of which
will work perfectly well.
We do recommend that you keep the length of cable as short as
possible
to avoid any potential noise problems.
When using speaker level connections, use aquality speaker cable that mates well with the
connectors (at least 18-gauge). Be very careful to avoid any loose or frayed strands that could
result in a short, causing adangerous condition and possible damage to your unit. Cables of
extremely large size
are typically not required. Extremely large gauge wire may not properly fit
in the binding posts, resulting in apoor connection and possible short circuits.
WWW.VELODYNE.COM
Optimum User's Manual 10

USAGE
This section addresses day-to-day usage of your Optimum subwoofer.
Remote Control
Figure 3shows the remote control, enabling you to easily choose whatever listening mode
you desire.
NOTE: The Optimum remote can be attached magnetically to the back of the subwoofer in the
upper left hand
corne~
Figure 3. Remote Control
POWER
This button forces your Optimum unit into standby mode. The woofer will not play and the LEO
will turn off. The unit will remain in this mode until the POWER button is pressed again. To fully
deactivate (i.e. power down) the unit,
turn off the power switch on the back panel.
MUTE
This button mutes the subwoofer. The display will show "00" when the unit is muted. To unmute
the subwoofer, press the MUTE button again.
WWW.VELODYNE.COM
Optimum User's Manual . 11

EQ
This button automatically EQs the subwoofer using a6-band internal parametric equalizer. To
use this feature, first plug the supplied microphone into the Mic Input jack on the front panel of
the subwoofer and place the mic on its stand and in your preferred listening position. Then, by
pressing EQ on the remote, the subwoofer emits 12 "sweep tones" that cover the frequencies
between
20 and 150 Hz. After the sweeps are complete, the unit calculates and saves its EQ
settings, then returns to normal operation. In order to avoid accidentally activating the EQ
feature, you will need to hold down the EQ button for 1 to 2seconds before the EQ sweep tones
activate.
NOTE: Each time the EQ feature is utilized, the EQ settings for the Optimum subwoofer are
reset. If
the microphone is not plugged in, the Optimum subwoofer will emit two sweep tones
then cease the EQ operation. In this case, the previous EQ settings will be preserved.
PHASE
These buttons allow you to optimize the subwoofer performance for the location and your
listening position. Select
the switch position at which you hear the most bass. The setting will
be shown in the
front panel display by "PH" followed by the phase setting selected - 0, 90,
1 80 or 270 degrees.
LIGHT
If you wish, you can deactivate the blue front panel display on your Optimum unit. To do this,
press the LIGHT button on your remote. The display will turn off. It will turn on briefly to
reflect any other setting changes while deactivated. To reactivate the display, press the LIGHT
button again.
NIGHT
Night mode limits the maximum output of the subwoofer for later night listening or to be more
considerate of close neighbors. Press the night button to turn the night mode feature on or
off. Night mode, when active, is indicated by the reduced intensity of the display.
VOLUME CONTROL
This control allows you to balance the output from the subwoofer to the main speakers in your
system. This control should
be set to achieve similar volume level from both the main speakers
and subwoofer.
When pressing the volume up or down, the setting is shown in the front-
mounted
LED display as anumber between 00 and 80.
NOTE: The volume can also be adjusted via the buttons on the back panel of the subwoofer.
These buttons have the same effect as pressing the up and down volume buttons
on your
remote. The unit comes
preset from the factory with the volume set at 30 out of amaximum
setting of
80.
WWW.VELODYNE.COM
Optimum User's Manual 12

PRESETS
There are four presets, consisting of Movies, R&B -Rock, Jazz -Classical, and Games. As a
preset
is chosen, the LED display shows the selected preset: P1, P2, P3 or P4. The presets
provide the following characteristics
for bass reproduction:
Movies: [P1) Maximum output and impact for explosions and other
action adventure movie content.
R&B -
Rock: [P2) Provides the driving bass found in today's rock music.
Jazz -Classical: [P3) The tightest, cleanest, lowest distortion bass.
Games: [P4) Maximum loudness available for the impact of video games.
The following table indicates musical style and which preset is recommended for it.
MUSICAL STYLE SUGGESTED PRESET
Action Adventure Movies Movies
Country -Rock R&B -Rock
Country -Soft Jazz -Classical
Folk
Jazz -Classical
Indie Music R&B -Rock
Pop
R&B -Rock
Rock R&B -Rock
Alternative Rock Jazz -Classical
Blues Jazz -Classical
Broadway
and Vocalists Jazz -Classical
Children's Music Jazz -Classical
Christian and Gospel
Jazz -Classical
Classic Rock R&B -Rock
Classical Jazz -Classical
Dance
and OJ R&B -Rock
Hard Rock
and Metal R&B -Rock
Latin Music R&B -Rock
Miscellaneous Jazz -Classical
Movies -Non-Action Adventure Jazz -Classical
New Age Jazz -Classical
Opera
and Vocal
Jazz -Classical
R&B R&B -Rock
Rap and Hip-Hop R&B -Rock
Soundtracks R&B -Rock, Jazz -Classical
Video Games Games
WWW.VELODYNE.COM
Optimum User's Manual 13~

Each preset has its own characteristics with respect to subsonic filter, volume differential and
asingle equalizer
[EQ) in order to optimize the listening mode for the preset.
The following table shows
the settings for the various presets:
Preset
Subsonic
EQ
EQ
Volume
Filter Frequency Level Differential
Frequency
Movies
25 Hz 35 Hz +4 dB
+5 dB
R&B -Rock
28 Hz 50 Hz
+4 dB +1 dB
Jazz -Classical
15 Hz
N/A N/A N/A
[Reference)
Games
34 Hz 62 Hz +4 dB
+4 dB
Restore Defaults
There is afeature that allows you to restore default settings for your Optimum subwoofer. By
pressing presets in EXACTLY the following order on the remote, the unit's LED display will blink
and then show "P3" briefly, indicating
that you have restored defaults.
1. Movies
2. R&B -Rock
3. Jazz -Classical
4. Games
5. Games
6. Jazz -Classical
7. R&B -Rock
8. Movies
When you press the presets in the above order, the power light will blink and then show "P3"
indicating
that you have restored defaults and the subwoofer is now set to preset 3. The unit's
volume
is reset to level 30 out of 80. Be sure to check the status of the Auto On/Off function
after restoring defaults.
WWW.VELODYNE.COM
Optimum User's Manual 14

CARE OF YOUR SUBWOOFER
Do not use any harsh detergents or chemicals to clean the cabinet. Abrasives, detergents, or
cleaning solutions will damage the finish on the cabinet. We recommend using adamp cloth
to clean the front, back and sides.
During normal conditions, the subwoofer may
be left on continuously without any problems.
If you plan to leave the unit unused for an extended period of time, we recommend that you turn
off the subwoofer by the master power switch on the rear panel.
TROUBLESHOOTING AND SERVICE
Before seeking service for your amplifier or subwoofer, please re-check all systems. Following
is asimple troubleshooting guide to assist you.
1. Verify that the unit is plugged in and power outlet used is active.
2.
Is the power switch on?
3.
Is the unit receiving an input signal from your source?
4. Have
all controls on the amplifier (volume, crossover, phase, etc.) been properly set?
5.
If the unit has been running at high levels, one of the protection circuits may be engaged.
Has the amplifier overheated?
6. Has the power button been depressed on
the remote?
7. Make sure binding posts are tightened.
If the protection circuitry is active, the unit may cycle on and off until operating parameters
return to normal. Under more serious conditions, the unit may shut off completely. Normal
operation should
return upon cooling, but you may be required to turn the power off and then
on again to reset the unit.
The following conditions require service
by aqualified technician:
1. The power cord has become damaged
2. The unit does
not appear to operate normally or exhibits amarked
change
in performance
3. The unit has been exposed
to water
4. Some part of the chassis or circuitry is physically damaged
Thank You for Purchasing aVelodyne Optimum Subwoofer!
WWW.VELODYNE.COM
Optimum User's Manual 15

SPECIFICATIONS
Specifications Optimum·8 Optimum.10 Optimum·12
Woofer:
8" forward firing
10" forward firing 12" forward firing
[6.5" piston diameter]
[8" piston diameter] (9,7" piston diameter)
Amplifier:
2400 watts Dynamic
2400 watts Dynamic 2400 watts Dynamic
[Class D) 1200 watts RMS Power
1200 watts RMS Power 1200 watts RMS Power
High Pass Crossover: 80Hz [6 dB/octave)
80Hz (6 dB/octave]
80Hz (6 dB/octave)
Low Pass Crossover*:
40Hz-120Hz 40Hz-120Hz 40Hz-120Hz
*12 dB octave initial, 24 dB octave ultimate
Frequency Response:
28-120Hz 24-120Hz 22-120Hz
[+/-3
dB)
Harmonic Distortion:
<5% [typical]
<5% [typical) <5% [typical)
Magnet Structure: 204 oz.
346 oz. 346 oz.
[12.7Ibs) (21.6
Ibs.]
[21,6Ibs.)
Voice Coil:
2.5" Dual Layer
3" Dual Layer 3" Dual Layer
inner/outer wind inner/outer wind inner/outer wind
Inputs: Line and Speaker Level
Line and Speaker Level Line and Speaker Level
Outputs:
Line-level, 80Hz up
Line-level, 80Hz up Line-level, 80Hz up
Phase: 0°,90°, 180°, 270° degrees
0°, 90°, 180°, 270° degrees 0°,90°, 180°,270° degrees
Video Shielded:
No
Yes Yes
Dimensions [H/W /0): 11" x 10.6" x 12" 13.5" x 13" x 13.25" 15.4" x 15" x 16.25"
[inc. feet, grill and knobs] [28 x27 x 31 cm) [34 x33 x34 cm) [39 x38 x 41 cm)
Cabinet:
Sealed enclosure Sealed enclosure Sealed enclosure
Finish:
Hand-rubbed black lacquer Hand-rubbed black lacquer Hand-rubbed black lacquer
or cherry veneer or cherry veneer or cherry veneer
Accessories: Mic, mic stand, and
Mic, mic stand, and Mic, mic stand, and
remote control
remote control remote control
Warranty: Three years (electronics] Three years [electronics) Three years [electronics)
[parts/labor] Five years (drivers] Five years [drivers] Five years [drivers)
Shipping Weight [approx.): 33 Ibs. [15 Kg) 43 Ibs, (20 Kg]
49 Ibs. [22 Kg]
NOTE: Specifications are subject to change
WWW.VELODYNE.COM
Optimum User's Manual 16

FOR YOUR RECORDS.
Date Purchased, _
Dealer _
Serial # _
* NOTE: Please complete and return your warranty card within ten {10J days or
Register. . . ON LINE . . . It's faster . . . and easier
www.velodlJne.com
LIMITED WARRANTY· U.S. AND CANADA DNLY
VELODYNE ACOUSTICS, Inc. ("VELODYNE"j warrants all electronics for aperiod of three years, drivers for aperiod
of five years, and full range speakers for aperiod of five years.
All VELODYNE products have awarranty from the
date of purchase against defects
in materials and workmanship subject to the following conditions:
1.
VELODYNE is not responsible for defects which result from the use of an amplifier or controller other than
the one originally supplied with the unit (subwooferj
or defects which result from modifications or repairs
made
by any component of the system by anyone other than a VELODYNE factory authorized
service representative.
2. This warranty is
void if any repairs or service covered by the terms of this warranty are made to any
component of the system by anyone other than a VELODYNE factory authorized service representative.
3.
VELODYNE is not responsible for damage caused by accidents, abuse, misuse, natural or personal disaster
or unauthorized modification. The VELODYNE products are not intended for professional or commercial use
and
VELODYNE is not responsible for damage resulting from such use.
4. The
VELODYNE product warranty is limited to units that are purchased from authorized VELODYNE dealers
and finalized within authorized dealer locations.
5. This warranty
is nontransferable under any condition.
6. Use of this product outside the U.S. and Canada voids this warranty.
TO OBTAIN SERVICE
Information regarding service may be obtained from the dealer from whom you purchased the unit, or by contacting
VELODYNE customer service. Warranty service must be performed by a VELODYNE factory authorized service
representative within the warranty period set forth above. If
VELODYNE determines the unit is defective, VELODYNE
will, at VELODYNE's option, repair or replace the product at no charge if the product is forwarded prepaid to afactory
authorized service representative. Products forwarded to the factory authorized service representative should
be
shipped securely and properly packaged, insured and freight prepaid.
WARRANTY OUTSIDE THE UNITED STATES AND CANADA
The Warranty of this product if it is sold to aconsumer outside of the United States or Canada shall comply with
applicable law and shall
be the sole responsibility of the distributor that supplied this product. To obtain any applicable
warranty service, please contact the dealer from which
you purchased this product, or the distributor that supplied
this product.
WWW.VELODYNE.COM
Optimum User's Manual 17