Marsh P2000 Operating Manual

MARSH SOUND DESIGN

OPERATING MANUAL

P2000

Preamplifier

Marsh

2

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 pointwithin an equilateral triangle isintended to alert the userto 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 TORAIN OR MOISTURE.

Marsh

3

Before proceeding with the installation, please read the instructions carefully and completely. If you have
any problems, do not hesitate to contact yourretailer or our ServiceDepartment.

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 removeby 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 fromthe ACmains.

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 arisk 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 aproblem 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 mustnot beblocked or covered.

14. The operating temperature ranges from +5 to +35 degrees C. Operating humidity ranges from 5% to
80%. Do notoperate theunit when the temperature and/or humidity are outside of this range.

Important/Precautions

Marsh

4

Thank You for purchasing theMARSH SOUND DESIGNMSD-P2000.

MSD brings you extraordinary components that are true, above all, to the art of music.

Marsh

5

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

M

SD'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 cannotimagine today.

Preface

J

ust as a great performer spends years learning his or her instruments, so a master designer spends years
understanding the complexitiesof audiocircuitry 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 yearsof 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 yourcourse for the music .. .and leavethe restto us.

Marsh

8

Marsh

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

Marsh

9

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.

Marsh

10

The unit is always in standby mode when the AC power cord is plugged into AC wall outlet. The power LED
will be indimly BLUEcolor. The preamplifier does not operate in this state. But the internalcircuitry 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 deactivateTAPE mode.

3. SELECTOR Turn the selectorknob tothe desired source input.

.

4. BALANCE Turn the balance levelknob toadjust the sound balance between two speakers. Leave
it in the center position to give equaloutput 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 andvice 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

TAPE

POWER

DVD VIDEO

TUNER

CD

LINE1

LINE2

Marsh

HR LA

IGH ESOLUTION INE MPLIFIER

Marsh Sound Design MSD- 2000P

54

3

21

Marsh

11

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/LINE1/LINE 2/TAPE Press to selectprogram source.

4. LBALANCE 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 typeis Alkalinethen both batteries should be Alkaline.

B. Donot usean old battery with a new battery.

C. If theremote control will not be used for a long periodof time, the battery should be taken out.

Press + to increase the output level, press - to decrease the output level.

SUGGESTIONS AND WARNINGSIN USING REMOTE CONTROL

Marsh

CD

DVD

LINE1 LINE2

TAPE

BALANCE

L

VOL

R

VIDEO

TUNER

POWER

MUTE

RC-1 Remote Control
Marsh Sound Design

1

2

3

3

4

5

REMOTEIN

REMOTEOUT

LEFT

RIGHT

CDTUNER

DVD

VIDEO

LINE1LINE2TAPE

VIDEO

TAPE21

OUTPUTS

REC

INPUTS

Marsh

MODEL: MSD- 2000P

PREAMPLIFIER

SERIAL
NUMBER

POWERCONSUMPTION : 15 W MAX

60HzAC120Volts

TOPREVENT FIRE AND SHOCK HAZARD, DO NOT

EXPOSETHIS DEVICE TO RAIN OR MOISTURE.

-DO NOT OPERATEWITH COVERS REMOVED -

CAUTIONFOR CONTINUED PROTECTION
AGAINSTFIRE HAZARD, REPLACE ONLY

WITHSAME TYPE AND RATINGFUSE.

RISKOFELECTRIC SHOCK

DONOTOPEN

AVIS : RISQUE DE CHOC ELECTRIQUE-NE PASOUVRIR

WARNING

REMOTEIN

REMOTEOUT

LEFT

RIGHT

CDTUNER

DVD

VIDEO

LINE1LINE 2TA PE

VIDEO

TAPE21

OUTPUTS

REC

INPUTS

Marsh

MODEL: MSD- 2000P

PREAMPLIFIER

SERIAL
NUMBER

POWERCONSUMPTION : 15 W MAX

60HzAC120Volts

TOPREVENT FIRE AND SHOCK HAZARD, DO NOT

EXPOSETHIS DEVICE TO RAIN OR MOISTURE.

-DO NOT OPERATEWITH COVERS REMOVED -

CAUTIONFOR CONTINUED PROTECTION
AGAINSTFIRE HAZARD, REPLACE ONLY

WITHSAME TYPE AND RATINGFUSE.

RISKOFELECTRIC SHOCK

DONOTOPEN

AVIS : RISQUE DE CHOC ELECTRIQUE-NE PASOUVRIR

WARNING

Marsh

12

INPUTS TheMSD- P2000 have atotal of 7line levelinputs.

REC (Recording output monitor) The MSD- P2000 has2 recording monitor outputs for duplication.

1. CD Receives the signalfrom aCompact Disc player.

2. TUNER Receives signal froma Tuner.

3. DVD Receives signal froma DigitalVersatile Disc player..

4. VIDEO Receives signalfrom a VCR audio output.

5. LINE 1 Receives signal froma linelevel source.

6. LINE 2 Receives signal fromanother linelevel source.

7. TAPE Receives signal froma cassettetape 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 recordon 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 recordon the VCRplayer.

If the program source is set to VCR, then there will be no recording because the VCR

Player cannot play and record at the sametime.

7891011121314 1

Connections

23456

Marsh

13

Connections

OUTPUTS The MSD- P2000 has 2 outputs for connectionto 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 amplifierwith 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 powercontrol center or other equipment.

14. POWER Connectthe MSD-P2000 tothe outletwith the enclosed power cord.

IMPORTANT: Operate the unit only from the power source of the appropriate voltage indicated on rear

panel.

Marsh

14

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

Marsh

15

Use a soft, dry cloth to remove dust from the cabinet. For stubborn dirt, soak the cloth in a weak detergent
solution. Be sureto wring the clothwell 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 THEELECTRONIC COMPONENTSWITHIN THE UNIT.

Care & Maintenance

16

Marsh

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

17

Marsh

LINE AMPLIFIER SECTION

REMOTE TURN ON/OFF SECTION

FrequencyResponse, 20-20,000 Hz +/- 0.1 dB

THD+noise at 2 Vrms, 20-20,000Hz <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), Shipping13.9 lbs (6.2kgs)

Specifications

18

Marsh

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

Marsh

HR LA

IGH ESOLUTION INE MPLIFIER

Marsh Sound Design MSD- 2000P

REMOTEIN

REMOTEOUT

LEFT

RIGHT

CDTUNER

DVD

VIDEO

LINE1LINE2TAPE

VIDEO

TAPE21

OUTPUTS

REC

INPUTS

Marsh

MODEL: MSD- 2000P

PREAMPLIFIER

SERIAL
NUMBER

POWERCONSUMPTION : 15 W MAX

60HzAC120Volts

TOPREVENTFIRE AND SHOCK HAZARD, DO NOT

EXPOSETHISDEVICE TO RAIN OR MOISTURE.

-DONOT OPERATE WITH COVERS REMOVED -

CAUTIONFORCONTINUED PROTECTION
AGAINSTFIREHAZARD, REPLACE ONLY

WITHSAMETYPE AND RATING FUSE.

RISKOFELECTRIC SHOCK

DONOTOPEN

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

WARNING

REMOTEIN

REMOTEOUT

LEFT

RIGHT

CDTUNER

DVD

VIDEO

LINE1LINE2TAPE

VIDEO

TAPE21

OUTPUTS

REC

INPUTS

Marsh

MODEL: MSD- 2000P

PREAMPLIFIER

SERIAL
NUMBER

POWERCONSUMPTION : 15 W MAX

60HzAC120Volts

TOPREVENTFIRE AND SHOCK HAZARD, DO NOT

EXPOSETHISDEVICE TO RAIN OR MOISTURE.

-DONOT OPERATE WITH COVERS REMOVED -

CAUTIONFORCONTINUED PROTECTION
AGAINSTFIREHAZARD, REPLACE ONLY

WITHSAMETYPE AND RATING FUSE.

RISKOFELECTRIC SHOCK

DONOTOPEN

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

WARNING

Marsh

19

Notes

MARSH SOUND DESIGN

Email: [e-mail]

www.marshsounddesign.com

Tel: [phone] Fax: [phone]

62 El Camino Drive, Corte Madera, CA 94925

Marsh