marantz pm-75 user manual

The Marantz PM-75 is a high-quality stereo integrated amplifier featuring 75 watts per channel, MM/MC phono input, CD direct input, tone controls, loudness compensation, speaker A/B switching, and headphone output. Designed for audiophile performance with gold-plated connectors, aluminum front panel, and remote control capability. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operation Guide 8. Remote Control 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-current power amplifier, MM/MC phono stage, CD direct input, tone controls, speaker switching, headphone output.

FeatureDescription
Power Output75 watts per channel (8 ohms)
Phono InputMM/MC cartridge compatible
CD DirectPure signal path for CD players
Tone ControlsBass and treble adjustment
LoudnessFrequency compensation at low volumes
Speaker SwitchingA/B speaker selection
Headphone OutputFront panel 1/4" jack
Remote ControlInfrared remote operation
InputsPhono, CD, Tuner, Aux, Tape
OutputsSpeaker A/B, Tape Out, Pre Out

Installation

Unpack and inspect contents. Place on stable, level surface with adequate ventilation.

  1. Connect speakers: Use high-quality speaker cable to Speaker A/B terminals.
  2. Connect source components: Use RCA cables for Phono, CD, Tuner, Aux inputs.
  3. Connect turntable: Use Phono input for MM/MC cartridges.
  4. Plug into AC power outlet.

WARNING! Ensure proper ventilation; do not block heat sinks. Use correct speaker impedance.

First-Time Setup

Power on amplifier; set initial controls to neutral positions.

  1. Set input selector: Rotate to desired source (CD, Phono, etc.).
  2. Adjust volume: Start at minimum, gradually increase to desired level.
  3. Select speakers: Press A or B for desired speaker set.
  4. Tone controls: Set to flat position for pure sound.
  5. Phono loading: Set appropriate impedance for cartridge type.

CAUTION! Always turn volume down before switching inputs or powering on/off.

Specifications

Controls and Settings

Front Panel: Power switch, Input selector, Volume control, Balance, Tone controls, Loudness, Speaker A/B, Headphone jack.

Rear Panel: AC power inlet, Phono input, CD input, Tuner input, Aux input, Tape inputs/outputs, Speaker terminals, Pre Out.

Tone Controls: Bass ±10dB at 100Hz, Treble ±10dB at 10kHz. Loudness: +6dB bass boost at -30dB volume. Balance: Left/right channel adjustment. Phono: MM/MC selector switch with impedance loading.

Connecting Devices

Source Components: Phono, CD player, Tuner, Tape deck, Aux devices.

  1. Turn off amplifier before making connections.
  2. Use high-quality interconnects for best performance.
  3. Match inputs to source components (Phono for turntable, etc.).
  4. Connect speakers ensuring correct polarity.
  5. For bi-wiring, use both sets of speaker terminals.

Tip: Keep signal cables away from power cords to minimize interference.

Operation Guide

Basic operation procedures for optimal performance.

  1. Power on: Switch on rear panel, then front power button.
  2. Select source: Rotate input selector to desired position.
  3. Adjust volume: Use volume control for desired listening level.
  4. Speaker selection: Press A or B for connected speakers.
  5. Tone adjustment: Use bass/treble controls if needed.
  6. Loudness: Engage for enhanced bass at low volumes.
  7. Headphone use: Plug into front jack automatically mutes speakers.
  8. Tape monitoring: Use Tape Monitor for recording/playback.

WARNING! Do not operate with cover removed. Avoid shorting speaker terminals.

Remote Control

Infrared remote functions: Power, Volume up/down, Mute, Input selection, Balance adjustment.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Clean controls with contact cleaner if needed.

CAUTION! Do not use solvents or abrasive cleaners. Keep away from moisture and extreme temperatures.

Regulatory Information

CE compliant, RoHS compliant. Manufactured to international safety standards. Copyright © Marantz. For support, contact authorized Marantz service centers or visit www.marantz.com.

Troubleshooting

SymptomPossible CauseCorrective Action
No soundVolume/mute/speakersCheck volume setting, mute status, speaker connections.
Distorted soundOverload/speakersReduce volume, check speaker impedance compatibility.
Hum or noiseGrounding/cablesCheck ground connections, cable routing, source components.
One channel silentBalance/connectionsAdjust balance control, check RCA cables and connections.
Remote not workingBatteries/obstaclesReplace batteries, ensure clear path to IR sensor.
Phono no soundCartridge/loadingCheck cartridge type setting, proper grounding, connections.

Reset: Power cycle amplifier if issues persist.

Service: Contact authorized Marantz service center for repairs.

Marantz PM-75 User Manual © - All Rights Reserved 2025