Marsh P2000 User manual

MARSH SOUND DESIGN
OPERATING MANUAL
P2000
Preamplifier

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The lightning flash with arrowhead, within an equilateral triangle, 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 people.
CAUTION:
To prevent the risk of electric shock, do not remove the cover (or back) . No user-serviceable parts inside.
Refer servicing to qualified service personnel.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying the appliance
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Warning
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT OPEN OR
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

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Before proceeding with the installation, please read the instructions carefully and completely. If you have
any problems, do not hesitate to contact your retailer or our Service Department.
1. All warnings on the unit and in the operating manual should be followed.
2. Operate the unit only from a power source of the appropriate voltage indicated on the rear panel.
3. Do not use a damaged or deformed power cord as it may cause electric shock. When removing the plug
from the wall outlet, be sure to remove by holding the plug attachment and not by pulling the cord.
4. This unit should not be used near water or in humid conditions.
5. Do not pour or spill liquids of any kind onto this unit.
6. Do not operate this product with any cover removed.
7. Before connecting or disconnecting any cables, always turn off your equipment and disconnect your
entire system from the AC mains.
8. Do not replace any fuse with a value or type other than that specified.
9. Do not overload the wall outlet or extension cord because this can result in a risk of fire or electric shock.
10. Do not push objects of any kind into this product through the openings e.g., ventilation slots, because
they may touch dangerous voltage points or short-out parts. This act could result in a fire or electric
shock.
11. Do not attempt to repair this product because opening or removing covers may expose you to dangerous
voltage or other hazards. If a problem occurs, contact your Marsh retailer.
12. Disconnect your entire system from the AC mains before cleaning.
13. Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of this
product and to protect it from overheating. These openings must not be blocked or covered.
14. The operating temperature ranges from +5 to +35 degrees C. Operating humidity ranges from 5% to
80%. Do not operate the unit when the temperature and/or humidity are outside of this range.
Important/Precautions

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Thank You for purchasing the MARSH SOUND DESIGN MSD-P2000.
MSD brings you extraordinary components that are true, above all, to the art of music.

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Table of Contents
Important/Precautions..............................................................................................2
Preface.....................................................................................................................6
Unpacking............................................................................................................8
Placement Considerations.........................................................................................9
Functions.................................................................................................................10
Rermote Control......................................................................................................................11
Connections............................................................................................................12
Troubleshooting guide.............................................................................................14
Care & Maintenance...............................................................................................15
Warranty information................................................................................................16
Specifications.........................................................................................................17
Dimensions..............................................................................................................18

MSD's logo comes from an ancient Native American petroglyph pecked in
stone, high in the Sierra Nevada mountain range. Long ago, small, self-
sufficient groups of people moved about the mountains, hunting and
gathering, and celebrating rituals. Leaving behind little about themselves, except for
these rock figures and a few stone tools. The mark we found, created a thousand years
ago, could have been a sun sign, a map, or a symbol of focus and concentration-or yet
some mystery we cannot imagine today.

Preface
Just as a great performer spends years learning his or her instruments, so a master designer spends years
understanding the complexities of audio circuitry and the science of electronics.
The Marsh Sound Design team builds its products to the most exacting standards of design and construction, for
simplicity of use, long life and timeless performance. Your investment in a Marsh product means that you can
forget about the hardware and focus on years of enjoyment.
For more than 30 years, author, lecturer, engineer, and inventor, has shared the art of
perfecting audio circuits with other designers. Now, his goal is to bring you his accumulated experience in the
service of music.
Richard N. Marsh,
So - set your course for the music . . .and leave the rest to us.

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Unpacking
WARNING:
.
PEOPLE WITH BACK PROBLEMS SHOULD NOT UNPACK THIS EQUIPMENT
WITHOUT ASSISTANCE
1. Carefully lift the unit out of the box.
2. Remove the foam packing material.
3. Set up the unit for use.
REMEMBER: Keep all the original packing in case it is necessary to return the unit for servicing.
1
2
2

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Placement Considerations
DO NOT INSTALL THE UNIT IN THE FOLLOWING LOCATION:
1. In a place subject to direct sunlight.
2. In a humid place.
3. In an extremely hot or cold place.
4. In a place subject to vibrations.
5. In a dusty place.
6. In a poorly ventilated place.

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The unit is always in standby mode when the AC power cord is plugged into AC wall outlet. The power LED
will be in dimly BLUE color. The preamplifier does not operate in this state. But the internal circuitry always
has power applied to it all the time.
1. POWER Pressing the POWER button to turn the unit into operation mode. The power
LED will appear brightly BLUE. The unit is fully functioning in this mode.
Press POWER button again to standby mode. The LED will be dimmed blue in this
mode.
2. TAPE Press the TAPE button once to select TAPE input as the source. The green LED will
be lit while in TAPE mode. Press TAPE button again to deactivate TAPE mode.
3. SELECTOR Turn the selector knob to the desired source input.
.
4. BALANCE Turn the balance level knob to adjust the sound balance between two speakers. Leave
it in the center position to give equal output on both channels.
Sometimes in unequal source recording, you may need to adjust the balance level to
get a balanced stereo sound. If the sound weaker on left side, move the knob to left
until you hear equal sound from speakers and vice versa.
5. VOLUME Adjust the output level.
Remark: The MSD-P2000 has an on-off digital control signal (REMOTE) to turn the power amplifier, with
remote turn-on capability, ON/OFF with the preamplifier.
Functions
BALANCEVOLUME
TAP E POWER
DVD VIDEO
TUNER
CD
LINE1
LINE2
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HR LA IGH ESOLUTION INE MPLIFIER
Marsh Sound Design MSD- 2000P
54 321

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Remote Control
1. POWER Press to toggle operate/standby.
2. MUTE Press once for mute, press again to resume the sound.
3. CD/TUNER/LASER/VIDEO/LINE 1/LINE 2/TAPE Press to select program source.
4. L BALANCE R Press L then the balance knob will turn left, press R the knob will turn right.
5. VOLUME
A. When you change the batteries always make sure that the batteries are of the same type. For
example, if the battery type is Alkaline then both batteries should be Alkaline.
B. Do not use an old battery with a new battery.
C. If the remote control will not be used for a long period of time, the battery should be taken out.
Press + to increase the output level, press - to decrease the output level.
SUGGESTIONS AND WARNINGS IN USING REMOTE CONTROL
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CD DVD
LINE1 LINE2
TAPE
BALANCE
L
VOL
R
VIDEO
TUNER
POWER
MUTE
RC-1 Remote Control
Marsh Sound Design
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2
3
3
4
5

REMOTE IN
REMOTE OUT
LEFT
RIGHT
CDTUNER
DVD
VIDEO
LINE 1LINE 2TA PE
VIDEO
TAP E21
OUTPUTS REC INPUTS
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MODEL: MSD- 2000P
PREAMPLIFIER
SERIAL
NUMBER
POWER CONSUMPTION : 15 W MAX
60 HzAC 120 Volts
TO PREVENT FIRE AND SHOCK HAZARD, DO NOT
EXPOSE THIS DEVICE TO RAIN OR MOISTURE.
- DO NOT OPERATE WITH COVERS REMOVED -
CAUTION FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE ONLY
WITH SAME TYPE AND RATING FUSE.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVI S :RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
WARNING
REMOTE IN
REMOTE OUT
LEFT
RIGHT
CDTUNER
DVD
VIDEO
LINE 1LINE 2TA PE
VIDEO
TAP E21
OUTPUTS REC INPUTS
Marsh
MODEL: MSD- 2000P
PREAMPLIFIER
SERIAL
NUMBER
POWER CONSUMPTION : 15 W MAX
60 HzAC 120 Volts
TO PREVENT FIRE AND SHOCK HAZARD, DO NOT
EXPOSE THIS DEVICE TO RAIN OR MOISTURE.
- DO NOT OPERATE WITH COVERS REMOVED -
CAUTION FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE ONLY
WITH SAME TYPE AND RATING FUSE.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVI S :RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
WARNING
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INPUTS The MSD- P2000 have a total of 7 line level inputs.
REC (Recording output monitor) The MSD- P2000 has 2 recording monitor outputs for duplication.
1. CD Receives the signal from a Compact Disc player.
2. TUNER Receives signal from a Tuner.
3. DVD Receives signal from a Digital Versatile Disc player..
4. VIDEO Receives signal from a VCR audio output.
5. LINE 1 Receives signal from a line level source.
6. LINE 2 Receives signal from another line level source.
7. TAPE Receives signal from a cassette tape player.
8. TAPE (REC) Sends output signals from a selected program source to cassette tape input. To
record from the program source onto cassette tape, turn the selector switch to the
source program you wish to record and press record on the cassette tape player.
9. VIDEO (REC) Sends output signals from a selected program source to a VCR audio input. To
record from the program source onto Video tape, turn the selector switch to the
source program you wish to record and press record on the VCR player.
If the program source is set to VCR, then there will be no recording because the VCR
Player cannot play and record at the same time.
7891011121314 1
Connections
23456

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Connections
OUTPUTS The MSD- P2000 has 2 outputs for connection to power amplifier.
10. OUTPUT 2 Sends signals to a power amplifier (use in bi-amplifier application).
11. OUTPUT 1 Sends signals to a power amplifier.
12. REMOTE OUT This is a +12 VDC control signal designed to send a remote control signal to a
MARSH SOUND DESIGN power amplifier with remote turn on capabilities. With
this function, your power amplifier can be powered ON and Off at the same time as
the MSD-P2000.
Connect the cable supplied with the MSD-P2000 into this jack and connect the other
end to a MARSH SOUND DESIGN power amplifier with remote turn on capabilities.
13. REMOTE IN This input accepts +12VDC control voltage from other equipment. The MSD-
P2000 preamplifier will be turned on when +12VDC is applied to this input. This
control voltage may come from a system power control center or other equipment.
14. POWER Connect the MSD-P2000 to the outlet with the enclosed power cord.
IMPORTANT: Operate the unit only from the power source of the appropriate voltage indicated on rear
panel.

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If the unit does not function properly, please check the list below and follow the instructions.
If the problem still occurs, please contact our service department.
PROBLEM
1. Unit does not turn on.
The LED is not lit.
2. No sound.
3. No sound from one speaker.
4. Low bass sound.
SOLUTION
Confirm that the power cord is plugged in
properly.
Check If the fuse is still good.
Check the speaker cable connection.
Check the interconnect cable connection.
Check the speaker or interconnect cable
connection.
Check the BALANCE control on the
preamplifier, make sure that it is in the
middle position.
Check the speaker cables for correct
phase connection.
Troubleshooting Guide

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Use a soft, dry cloth to remove dust from the cabinet. For stubborn dirt, soak the cloth in a weak detergent
solution. Be sure to wring the cloth well before wiping the unit. Use a dry cloth to wipe it dry. Do not use any
volatile agents such as benzine or thinner. They may damage the surface of the cabinet.
CAUTION: DISCONNECT YOUR ENTIRE SYSTEM FROM THE AC MAINS BEFORE
CLEANING. NEVER APPLY LIQUID CLEANSERS DIRECTLY TO THE UNIT. IT MAY RESULT
IN DAMAGE TO THE ELECTRONIC COMPONENTS WITHIN THE UNIT.
Care & Maintenance

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1. A MARSH SOUND DESIGN warranty only applies to the original retail purchaser. The warranty
certifies that the product is free from defects in material and workmanship and authorizes free service
and/or parts exchange
at an authorized MARSH SOUND DESIGN Service center.
2. The warranty is subjected to the following conditions and limitations. The warranty is void if the
product has been used in a manner other than that specified within the operating manual, if the
product has been abused or misused, or if the product has been repaired by anyone other than an
authorized MASH SOUND DESIGN Service center.
3. The warranty does not apply to defects or failure caused by usage of unauthorized parts, improper
maintenance, fire, flood, lightning or other natural causes.
4. This warranty does not cover damage to the external parts, e.g. Front panel, knobs, casing, etc.
5.
for a period of TWO years from the date of purchase. Service must only be
done
A returned product must include a copy of the Warranty Certificate and the bill of sale and must be
sent in the original packaging.
6. The warranty does not extend to any incidental or consequential cost or damage to the purchaser
caused by a malfunction of the product.
Warranty information

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LINE AMPLIFIER SECTION
REMOTE TURN ON/OFF SECTION
Frequency Response, 20-20,000 Hz +/- 0.1 dB
THD+noise at 2 Vrms, 20-20,000 Hz <0.025%
Input Impedance 50 kOhms
Maximum Gain 14 dB
Signal to Noise ratio, A weighted 98 dB
Maximum Output at 1kHz 6 Vrms
Cross talk at 1 kHz -92 dB
Cross talk at 10 kHz -92 dB
Remote in Voltage +12 V,-2 V,+5 V
Input resistance 4.7 kOhms
Remote out Voltage +12 V +/-2 V
Current 5 mA max.
Input Power AC 110-120 V, 60 Hz
Power consumption 14 W
Size 19” W x 3 5/8” H x 13” D
Weight Net 10.3 lbs (4.6 kgs), Shipping 13.9 lbs (6.2 kgs)
Specifications

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Dimensions P2000
74.0 mm.
2 15/16”
160.0 mm.
6 3/8”
15.0 mm.
3/4”
329.0 mm.
13.0”
482.0 mm.
19.0”
428.0 mm.
16 7/8”
80.0 mm.
3 1/4”
482.0 mm.
19.0”
82.0 mm.
3 5/8”
82.0 mm.
3 5/8”
BALANCEVOLUME
TAPE POWER
DVD VIDEO
TUNER
CD
LINE1
LINE2
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HR LA IGH ESOLUTION INE MPLIFIER
Marsh Sound Design MSD- 2000P
REMOTE IN
REMOTE OUT
LEFT
RIGHT
CDTUNER
DVD
VIDEO
LINE 1LINE 2TAPE
VIDEO
TAPE21
OUTPUTS REC INPUTS
Marsh
MODEL: MSD- 2000P
PREAMPLIFIER
SERIAL
NUMBER
POWER CONSUMPTION : 15 W MAX
60 HzAC 120 Volts
TO PREVENT FIRE AND SHOCK HAZARD, DO NOT
EXPOSE THIS DEVICE TO RAIN OR MOISTURE.
- DO NOT OPERATEWITH COVERS REMOVED -
CAUTION FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE ONLY
WITH SAME TYPE AND RATINGFUSE.
RISKOF ELECTRIC SHOCK
DONOT OPEN
AVIS : RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
WARNING
REMOTE IN
REMOTE OUT
LEFT
RIGHT
CDTUNER
DVD
VIDEO
LINE 1LINE 2TAPE
VIDEO
TAPE21
OUTPUTS REC INPUTS
Marsh
MODEL: MSD- 2000P
PREAMPLIFIER
SERIAL
NUMBER
POWER CONSUMPTION : 15 W MAX
60 HzAC 120 Volts
TO PREVENT FIRE AND SHOCK HAZARD, DO NOT
EXPOSE THIS DEVICE TO RAIN OR MOISTURE.
- DO NOT OPERATEWITH COVERS REMOVED -
CAUTION FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE ONLY
WITH SAME TYPE AND RATINGFUSE.
RISKOF ELECTRIC SHOCK
DONOT OPEN
AVIS : RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
WARNING

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Notes

MARSH SOUND DESIGN
Email: [email protected]
www.marshsounddesign.com
Tel: [phone] Fax: [phone]
62 El Camino Drive, Corte Madera, CA 94925
Marsh