Harman Kardon CSP-1 User manual

harman/kardon
AUTOMOTIVE SURROUND PREAMPLIFIER
owner's manual t6
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TNSTALLATTON CHECKL|ST........... ..................7
SELECTTNG NEW CROSSOVER FREQUENC|ES............, ,......,............8
HOW TO REPLACE A RESISTOR MODULE ......................9
INSTALLATION DETAIL DIAGRAM.. ...............10
SPEAKER PLACEMENT AND SELECTION ......................11
AMpLtFtER SELECTTON ..............11

We are very proud you have selected the CSP-1
Automotive Surround Processor. No expense has been
spared in the design or manufacture of this product. lt is
the result of over a decade of extensive research in the field
of psychoacoustics - in both home and automotive listening
environments.
The audio signal path is unbelievably cleah and uncolored
. as a result of the use of low noise circuitry, metal film resis-
tors and low-loss film capacitors. The high interchannel
separation delivers performance that is far superior to the
reproduced soundstage from a conventional stereo system.
Every necessary feature and adjustment has been includ-
ed to assure superior performance in any installation. After
listening to high-performance surround sound for just a few
hours, you will never again be satisfied with regular stereo.
IMPORTANT
This product must be installed and adjusted properly.
Please read this owners manual thoroughly so that you
may obtain maximum performance and enjoyment from the
CSP-1. This manual should be retained for future reference
and to answer operational questions as they arise.
The CSP-I converts the conventional stereo system in your
car into a 5 channel surround sound systenr on rnrheels.
The CSP-1 is based upon exclusive lmage Steering
Technology which has an unparalleled ability to localize
multiple sound sources with precise accuracy and com-
plete stability around a listening area.
Your CSP-1 will give you an initial listening impression of
dramatically increased depth or spaciousness - a natural
sense of acoustics space and size throughout your listen-
ing environment. Critical listening will reveal more specific
perceptions such as unprecedented freedom from elec-
tronic artifacts including image instability, distortions and
sonic coloration. The CSP-1 is able to achieve this freedom
from artifacts because unlike Digital Soundfield Processors
the CSP-1 does not add anything to the music. The CSP-1
simply extracts information already contained in stereo
recordings and recreates a natural surround soundfield.
With the CSP-1, individual sound sources within'the pro-
gram material will be more sharply defined and localized
with multiple events occurring from various directions
simultaneously.

i::.:: l-. ,- -_,,:
The CSP-1 combines a high-se[iaration surround proces-
sor, crossover and bass equalizer all in one rugged, com-
pact chassis. lt provides a spatially correct panoramic
expansion of ordinary stereo program material into a wide-
field surround audio format.
The CSP-1 will work excellently on un-encoded audio
material but is also compatible with the Dolby MP Matrix
(Dolby Surround)rM encoding that is used on some audio
recordings.
The lmage Steering technology employed within the CSP-1
represents the efforts of Jim Fosgate - a leading authority
in the field of multi-channel sound.
The CSP-1 includes a Subwoofer on/off switch to provide
full bass response in installations without subwoofers.
When the Subwoofer switch is off, the four corner channels
are given a full range of musical signal including low bass
energy. Be sure the corner speakers can handle low bass
energy without bottoming out or distorting. A subwoofer is
needed if the corner speakers cannot handle the low bass
energy.
The CSP-1 includes an adjustable crossover network. The
high frequencies are fed to the surround processor
circuitry and the low frequencies are always fed to the
subwoofer outputs and are fed to corner channels when
the Subwoofer switch is off. We have set 25O Hz as the
optimum crossover frequency for most installations. Plug-in
networks are available from harman/kardon which allow the
user to change crossover frequencies if necessary.
Three subwoofer outputs are provided: stereo L/R and
mono. The system can be installed with either a mono sub-
woofer or stereo left and right subwoofers or both stereo
and mono subwoofers. Stereo subwoofers are highly
recommendgd but requlre extra power and lndependent
enclosures 'for each speaker. ln installations where sepa-
rate subwoofers are not possible, a lower crossover
f requency will usually provide the best results.

The CSP-1 preamplifier works on un-encoded source
material
The lmage steering process works on both un-encoded
and Dolby SurroundrM encoded audio source material.
Unlike Dlgital Soundfield Processing, image steering
logic does not add anything artificial to the music. The
CSP-1 simply extracts spatial information out of standard
stereo recordings and recreates a realistic surround
sound field.
t Panorama control
The CSP-1 allows the user to adjust the width of the sound-
stage by using the fader control on the users head unit.
(Head unit must have some type of 4 way fader)
Bass Equalizer
The CSP-I includes a bass equalization circuit which can
provide as much as I8 dB of bass signal boost.
Noise Sequencer for easy system setup
The CSP-1 includes a noise sequencer which generates
a noise signal that makes optimal speaker level setup a
simple task.
214 Channel lnput Capability
The CSP-1 will accept input in a two or four channel format
from the head unit.
Built-in Adjustable High Order Crossover
This built in crossover design allows for a wlde choice of
user selectable crossover points. Frequency changes are
made by installing different resistor modules.
Exceptional Sound Quality
Like all Harman Kardon products, the CSP-1 is deslgned
and manufactured to perform with sonic excellence. The
lmage Steering preamplifier puts the fewest possible
stages of electronics in the signal path for maximum sonic
purity.
Fully regulated power supply
The power SUpply is fully regulated, ensuring stable opera-
tion, free of engine noise.
Level trimmers do not affect input or output
impedances
The input gain and output level adjustments allow for easy
level matching without affecting the input or output
impedances of the CSP-1
Three separate subwoofer outputs
Stereo L/R and mono subwoofer outputs are provided.
Heavy Duty gold plated input/Output jacks
Gold plated jacks.insure excellent low loss contacts which
will not degrade over time. '
Designed and manufactured in the U.S.A.
Accessories
1. Ground wlre (black) (1 pc.)
2. Power supply wire (red) (1 pc.)
3. Remote On wire (yellow) (1 pc.)
4. Bypass switch and plate with built in harness (green)
(2 pieces)
5. Mounting screws (1 set)
6. Power Connector (1 pc )

CONNECTIONS
@ - lnput terminals (LF in, RF in, LR in, RR in) - These
should be connected to the line output (or preamplifier out-
put) of the tuner/CD or tuner/cassette. High quality cables
with tight-fitting RCA plugs should be used. The lnput
switch should be set for 2 or 4 channel input as appropriate.
@ - Output terminals (LF, RF, LR, RR, CF) - These
should be connected to the input terminals of the left front,
right front, left rear, right rear and center front channel
amplifiers respectively (see lnstallation Diagram).
@ - Output terminals (Mono Sub out, L Sub Out, R Sub
out) - These outputs should be connected to the inputs of
the low frequency power amplifiers. lf only one subwoofer
is being used the Mono Sub output should be used.
@ - Power lnput connector Receptacle - The input
power connector should be plugged into this receptacle
after it has been connected as shown in the system
installation diagram.

CONTROLS
@ - lnput Switch - This switch should be set to the "2
Channel" Position when two inputs (LF, RF) are used and
the "4 Channel" Position if four inputs are used (LF, RF,
LR, RR). Note that the tuner/CD or tuner/cassette fader
can be used as a panorama control only if four inputs
are connected. Details on the operation of the "Panorama
Control" are given in the "Operation" section of this
manual.
@ - Cain Switch - This switch allows for audio level
matching between the tuner/CD or tuner/cassette output
and the CSP-1 preamplifier input. Typically, the switch
should be set to the "Normal" position. lf after listening to
the audio system, sufficient volume level is not achievable
when the tuner/CD or tuner/cassette is turned up, place
this switch in the "High" position. The "High" position adds
more gain to the audio input stages of the CSP-1.
@ - Subwoofer Switch - This switch enables a crossover
which allows a subwoofer to be used with the CSP-1. The
crossover frequency is adjustable as detailed in the
'SELECTING NEW CROSSOVER FREQUENCIES" section
of this manual. The "Subwoofer" switch should be in the
on position only when a subwoofer is connected to one of
the subwoofer outputs.
@ - ttoise Sequencer Switch - The noise sequencer
switch turns on a test signal that rotates through all five
channels and allows for accurate and easy level calibra-
tion of the CSP-1 surround sound installation. A complete
description of the process of level ad.justment using the
Noise Sequencer is detailed in the "Setting Speaker
Levels" section of this manual.
@ - Output Level Adjustments (L Rear, R Rear, L Front,
R Front, and C Front) - These controls allow for adjust-
ment of the output levels of the CSP-1 preamplifier. These
adjustments are used to balance four corner and one cen-
ter channel speaker levels for optimal surround sound per-
formance The output levels should be set using the noise
sequencer as described in the "Setting Speaker Levels"
section of this manual.
@ - SuOwoofer Level Adjustments (L Sub, Mono Sub,
and R Sub) - These controls allow for adjustment of the
Subwoofer output levels of the CSP-1 preamplifier. These
levels should be set as described in the "Setting Speaker
Levels" section of this manual.
@ - Bass Equalization - This control allows the user to
boost the bass response of the system by up to 18 dB. This
control should be set according to the users taste after the
Subwoofer level controls (10) are set for a flat bass
response.

The operation of your surroun{r system will be similar to
the way it was before the CSP-1 was installed with the
exception of the added separation and the three-dimen-
sional sonic performance. The CSP-1 turns on automati-
cally and allows the user to control the panorama setting
and the bypass mode.
Panorama Control: Use the front-back fader on the control
head unit (available only if using four inputs to the CSP-1)
to obtain the desired sound stage width. This may vary
from program to program. Use the left to right balance
control on the radio or tape player to adjust the left to right
system balance. The left to right balance will require little
adjustment because of the center channel in a CSP-1
installation. Use the volume control on the tuner/CD unit or
tuner/cassette to control system volume.
Bypass Switch: The user bypass switch will normally be
set to "on" but can be set to "Bypass" if the user desires to
electronically bypass the lmage steering preamplifier. ln
bypass mode, all speakers except the center channel will
function with out lmage Steering Surround Processing.
Some poorly received FM broadcasts will sound more nat-
ural in bypass mode.
IMPORTANT
lf you find the head unit lefVright balance control is always
off center for proper left/right system balance, the input
gains on the amplifiers are not properly adjusted. Refer to
the Amplifier and Speaker level adjustment sections of
this manual.
PRECAUTION
This unit is designed for Negative Ground 12 V dc only;
avoid installations in locations where your CSP-1 will be
consistently exposed to extremely high ambient tempera-
tures, heavy concentrations of dirt or dust, direct rain or
moisture or excessive vibration. Avoid reversing positive
and negative power supply leads as this may cause dam-
age to the unlt.
INSTALLATION CHECKLIST
(see lnstallation diagram)
1. Before installing the CSP-1 you should decide whether
or not you need to change crossover frequency selec-
tion modules. Changes in the frequency modules may
be necessary if your four corner speakers cannot han-
dle frequencies down to 250 Hz. lf changes are nec-
essary follow the instructions in the "Selecting New
Crossover Frequencies" section of this manual (locat-
ed following this section). Note: most installations will
not require a change in crossover frequency.
2. Disconnect the negative (ground) cable from the bat-
tery of the vehicle.
3. Mount the CSP-1 in desired installation location.
4. Locate the four pin power connector where it can be
easily plugged into the CSP-1 after all wiring has been
completed.
5. Run the red Positive lead from the power connector
directly to the vehicle battery terminal. An additional
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fuse (not supplied) should be placed in line with this
wire at a location near the battery in order to guard
against shorting in the wire run.
6. Run the black Ground lead from the power connector
directly to the vehicle frame or other solid ground path
closest to the CSP-1 installation site.
7. Run the yellow remote on wire from the power con-
nector to the head unit remote turn on wire.
8. lnstall the bypass switch in the desired location. The
r switch may be installed with or without the metal trim
panel.
9. Run the bypass switch harness from the location
where you have chosen to install the bypass switch to
the CSP 1. Connect one of the wires on the switch to
the nearest available ground with the other connected
to the bypass input on the power connector of the
CSP-1.
10. Plug the four pin power connector into the CSP-1 .
11. Follow directions in the "SYSTEM ADJUSTMENT"
section.
12. Connect either two or four RCA inputs from the head
unit into the CSP-1 input jacks.
13. Connect the output jacks of the CSP-1 to the ampli-
fiers as appropriate for your installation.
SELECTING NEW CROSSOVER FREQUENCIES
Crossover frequencies are adjustable by changing two 16
pin DIP resistor packs on the circuit board (see next sec-
tion for replacement procedure). One is marked "Hl
PASS', and the other "LOW PASS". The High Pass section
affects the high frequencies that are directed to the high-
separation surround processor section. The Low Pass sec-
tion affects the low frequencies that are directed to the
subwoofer outputs and corner channels (with the sub-
woofer switch off). The optimum crossover point is approxi-
mately 25O Hz. lf the crossover point is made too high, a
loss of separation can result; lf the crossover point is made
too low, a loss of bass can result.
Differences among.various loudspeakers may require a dif-
ferent frequency than the standard 250 Hz. A higher
crossover point may be necessary if the five main speakers
have a very limited output capability al25O Hz (this is rare).
A lower crossover point may be necessary if stereo sub-
woofers are not used. The 25O Hz crossover point should
be auditioned before making a change. lt will usually be
satisfactory. The optimum crossover point may be different
than conventional stereo installations due to the high-
separation directional effects capability of the surround
processor.
lf your system requires crossover frequencies different
from the factory settings, they can be obtained by deter-
mining new resistor module values and then replacing the
factory modules with modules of the new valueS. To deter-
mine the new values, see the following chart.
The resistor value can also be calculated by dividing
820,000 by the desired crossover frequency.
820,000
R= Crossover Frequency

Standard Resistor Value Crossover Frequencv
2.7KO 300H2
3.3KO 250H2
3.9KO 2Q0Hz
4.7KA 175H2
5.6Ko 1 50Hz
6.8KO 120H2
8.2KO 1 00Hz
1oKO 80Hz
12KO 7jHz
15Kfl 55Hz
The chart only shows standard resistor module values.
Many of these values are available from your Harman
Kardon car audio dealer, As an alternative they can also
be obtained from electronic components dealers.
Due to the nature of surround sound processing we rec-
ommend against the use of crossover frequencies below
150 Hz and above 300 Hz on the "Hi Pass" crossover.
HOW TO REPLACE A RESISTOR MODULE
To replace a resistor module, use the following procedure:
1. Turn off the car audio system. This will prevent loud
"pops" that may damage some speakers.
2. Touch one of the input or output jacks with your finger
to eliminate any static charge.
3. Remove all of the power, input and output connectors
and jacks.
4. Remove the mounting screws from the CSP-1 and
remove the unit from the vehicle.
5. Take off the bottom cover of the enclosure by first
removing 3 screws from the input signal end plate, 2
screws from the bottom corners of the output signal
endplate, and 3 screws from each blank side of the
case. Next slide the bottom cover backwards until the
endplate clqars the input jacks and then lift the cover
off .
Find the appropriate resistor module on the circuit
board. They are marked 'Hl PASS" and 'LOW PASS'
and are located on the end of the circuit board near
the input RCA jacks.
Using a small screwdriver, slowly and gently pry the
module up first at one end and then at the other end.
Repeat prying up each end until the module is loose
and can easily be taken away by hand. Be careful not
to bend the pins.
lnsert the new resistor module. They are srymmetrical
and cannot be inserted backwards. Gently push the
module firmly into the socket. Be careful not to bend
the pins.
Re-install the bottom cover plate.
Re-mount the CSP-1 using the four mounting screws.
Reconnect the power, input and output connectors
and jacks.
Turn on the audio system power.
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12.

REMOTE
ON / OFF
CF = Cenler Front
LF = Lett Front
RF = Rlght Ftont
LR = Lelt Bear
RR = Rlght Rear
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10

sPEAKER PLAcEMENT oruo'B=rec'o*
For optimum surround performance, speaker placement
and matched frequency response is very important. Five
identical speakers positioned three across the front and
two in the rear provide the best performance. lf it is not
possible to use a center speaker that is identical to the
other speakers then choose a speaker that closely match-
es the high and midrange performance of the left and right
front speakers. A subwoofer system further enhances sys-
tem performance.
The Left and Right f ront channel speakers should be
mounted in the front doors or the dashboard. The left and
right surround channel speakers should be mounted in the
rear of the car as close to the back corners as possible.
Reflecting the radiated sound from the back speakers off
the rear of the car interior and rear window is preferable to
aiming them directly forward. Some hatchback vehicles are
exceptions to this rule.
The center front channel speaker should be mounted in the
center area of the dashboard and need not have bass
response below the 25O Hz factory hi pass crossover set-
ting. lf the center channel speaker has limited output capa-
bility at the 250 Hz hi pass setting, then it may be neces-
sary to add an additional passive hi pass crossover for the
smaller center channel speaker. This additional passive hi
pass crossover can be built by placing an appropriate
value capacitor in series with the smaller center channel
speaker.
Note: ln unusual cases a qualified installer may wish to
reduce center vs. left and right front channel separation
depending on power handling and the location of the
center channel speaker. The factory setting of the CSP-1 is
for maximum center to front channel separation and is ideal
for most installations. The CSP-1 front to center channel
separation can be adjusted if necessary using the proce-
dure that follows.
The Center Front Separation potentiometer is located under
the bottom cover, which can be removed using the pro-
cedure given in the "How to replace a resistor module"
section of this manual. The potentiometer adjustment is
located in the upper right corner of the circuit board near
the "LR" output RCA jack and is labeled "CF Sep" and
'R70". At the full clockwise or max position the control
causes all mono signal to be sent to the "Center Front"
channel output - this is the factory setting for maximum
separation and is ideal for most installations. At the counter
clockwise position the control sends all mono signal
equally to both the left and right front outputs and no signal
to the center front output. This control should only be
adjusted by a knowledgeable installer in unusual installa-
tions but typically should be left at the factory setting for
maximum separation. There are no other installer
adjustable controls inside the CSP-1 case.
Subwoofers can be mounted on the left and right sides of
the car in the kick panels, doors, or rear deck. An excellent
combination is to use smaller stereo subwoofers mounted
in the forward area and a large mono subwoofer mounted
in the rear.
11

. j.\-.i.irl.:--.. -'- :
AMPLIFIER SELECTION
Unlike many other center channel systems, the CSP-1 cen-
ter channel should be powered with an amplifier that is of
equal or greater power rating to the amplifier used on the
left and right front channels. ldeally, the rear channel
speakers should also be powered at the same level as the
front channels. The subwoofer amplifier should be pow-
ered as appropriate for the amount of bass output desired
in the installation.
2/4 INPUT SWITCH
Set the input switch to either the 2 or 4 input setting
depending on how many RCA inputs are connected from
the head unit to the CSP-1.
INPUT GAIN SWITCH
Set the lnput Gain Switch to normal. lf the output level of
the processor seems low during latter listening tests, this
switch may be changed to the high gain setting for better
matching,With the output level of the head unit.
suBWooFEn bwrrcn
The subwoofer switch should be turned on only in installa-
tions which have a subwoofer. The subwoofer switch
engages a high pass crossover on the four corner channel
speakers. This allows bass frequencies to be reproduced
only by the subwoofers attached to the left, right or mono
subwoofer outputs of the CSP-1.
AMPLIFIER LEVEL ADJUSTMENTS
Before adjusting speaker levels, center the left-right and
front-back balance controls on the tuner/cassette or
tuner/CD. Set the CSP-1 bypass control to the bypass
mode. Play a well-recorded stereo source arrd adjust the
amplifier input levels andlor CSP-1 output levels for a
roughly even channel balance, left-right and frontback.
Re-adjust the amplifier input levels and CSP-1 output
levels as necessary to obtain the best signal to noise per-
formance. As a general rule the input level controls on the
amplifier should be set as low as possible while still
providing adequate volume levels when the CSP-1 output
levels are set at near their half way point. lf the amplifier
12

hiss is too loud, turn up the CSP-I and turn down the
amplifier gain or visa versa to achieve the best signal-to-
noise performance. Adjust subwoofer levels for bass output
equivalent in level to the other speakers. lncrease in bass
output can then be achieved with the bass equalizer after
completing all other level adjustments.
SYSTEM PHASING CHECKOUT
Please note that you must be certain there is proper phas-
ing throughout the system before final level calibration can
be accurately and reliably established. Accurate phasing
of the loudspeakers in the system is also essential for pre-
cise localization of images and deep bass response.
lnsure proper phasing by verifying that the speaker wiring
color coding indicates correct phasing connections
between all amps and speakers.
After system phasing checks are completed use the inter-
nal noise sequencer within the CSP-1 to verify proper
hookup. The burst of noise will come from the LF, CF, RF,
LR, and RR speakers and move clockwise around the car.
SETTING SPEAKER LEVELS
Adjusting the CSP-1 output levels is done after completing
all amplifier level adjustments and verifying correct phasing
of all speakers as discussed in the two previous sections.
A dB Sound Pressure Level (SPL) meter is required to
properly adjust output levels of the CSP-1 in conjunction
with the built in noise sequencer. The noise sequencer but-
ton is located on the end panel of the CSP-1. The goal is to
set the volume at the primary listening position to read the
same dB SPL level (C-weighted, slow mode) from each
speaker. The levels of each speaker may be ad.iusted with
the individual speaker level controls. You should use the
meter pointing straight up at the roof so as not to favor one
speaker over another.
ldeally, the ]average" setting of the individual output level
controls should be near the middle of their range. The sim-
plest way to achieve this is to set a single channel's output
level control in the middle of its range and then use the
reading obtained on this speaker (with the noise sequencer
button on) as the reference SPL level. Then adjust the rest
of the individual output level controls to match the refer-
ence sound pressure level using the test tones generated
by the noise sequencer.
ln the absence of a dB SPL meter, it is possible to set the
output level controls by ear. Use the built-in noise
sequencer on the CSP-I to adjust all volumes to sound the
same as they cycle arourid the various speaker;. The test
signal is bandwidth-limited pink noise to minimize the prob-
lem of timbre shifts influencing the setting of levels. Even
so, using non-matched speakers, especlally mis-matched
Left-Front, Center, or Right-Front, may make lt difficult to
judge proper balance due to variations in spectral balance.
Simply get as close as you can! The system will then be
reasonably well balanced.
13

SUBWOOFER LEVEL ADJUSTMENT
The CSP-1 provides three subwoofer outputs. The sub-
woofer level controls adjust the level at the subwoofer out-
put jacks. Adjust the subwoofer level controls for the
desired balance of sound. For best results, the subwoofer
level should be matched to the level of the satellites. Any
desired bass boost should be achieved with the Bass
Equalizer adjustment, not the subwoofer level control.
BASS EOUALIZER ADJUSTMENT
The patented Bass Equalizer circuit included in the CSP-1
allows amplitude and frequency compensation with only a
single rotary control. lt will provide a full, solid foundation of
bass energy unmatched by any other equalizer. Adjust the
control for the desired low bass boost. This control can
be set once and forgotten. Adjust the regular bass control
on the tuner/cassette or tuner/CD for normal variations in
program material.
FUSE REPLACEMENT
To prevent circuit board damage in the event of a compo-
nent failure, there is a 1.5 ampere 3AG-type fast blow fuse
in the power supply. lt is doubtful that the fuse will fail
unless there is a serious failure of certain parts within the
CSP-I. ln the event of a fuse failure, replace it with the
same value and type. The fuse is located inside the unit
and can beaccessed by removing the bottom cover using
the directibns g'iven in the 'How to Replace a Resistor
Module" section. Contact your retail dealer of Harman
Kardon products for authorization to return the unit to the
factory for repair if the fuse fails repeatedly.
14

Problem Probable Cauge Bemedy
No sound Remote, +12 V
or Ground wires
not connecled.
lnput or output
signal cables not
connected properly.
ln-dash unil, external
process0r 0r povver
ampliliers not working
properly.
Fuse Blown
Connect them
per instructions,
Connect them
per instructions.
irouble shoot them
per their owner's
manual.
Replace fuse per
instructions in this
manual.
Engine or allernator
noise in lhe sound Ground terminal not
connected to a
chassis ground point.
lnput or output signal
cables are picking
up noise from +12V
or ground wires from
the amplifiers.
Re-locate ground
wire connection,
Run power lead
directly to "+" battery
terminal. Re-position
the signal cables
away from lhe
amplifier power wires.
0r, add power
line lilters to the
amplifier's +12V wire.
Problem Probable Cause Bemedy
High "hiss noise" CSP-1 output signal
levels are set too low. Amplilier gains may be to high. Re-set
all signal levels as
per the CSP-1
manual sections
titled 'Amplilier and
Speaker Level
Adjustments".
No surround effect Bypass mode selected Place bypass switch
in "on" position
Unit Dead Unit Wired lncorrectly
Fuse Blown
Check all Wiring.
Make sure power
plug is lirmly
plugged in. Check
to verify that power
wiring is not
reversed.
Replacsfuse
:
15

. THD at 2 Volts, 1 kHz Less than 0.2 %
t.o"'* *"0"" l,?i1l;,],11,[1fit*3 3f,[',',o*,,.,
Frequencies
High Channel High-Pass .250 Hz 18, dB/octave rolloff
Frequencies (can be varied from 55 Hz
- 300 Hz)
lnouU0utout Gain +20 dB (oain swilch on Hiqh)
Maximum 0utput Level (0.2% THD) 2 Volts RMS
Bass Eq 0 to + 18 dB boost @ 45 Hz
Signal to Noise Ratio (A-WTD,
2 0 Volls)
>95 dB
lnout lmoedance 34 kO
Output lmpedance 100 O
Static lnter-channel 35 dB minimum: typically better
Separation than 40 dB
Fuse Size and Type 1.5 amp Tvpe 3AG Fast Blow
Mechanical SizeAVeioht 101la"x71la "x 1'h"/3 lbs 5 oz
' denotes factory setting
'Dolby MP and Dolby Sunound'are trademarks 0f Dolby Laboralories Licensing Corporation,
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