Marantz PM 80 User Manual

The Marantz PM 80 is a high-performance integrated stereo amplifier featuring dual mono construction, high current capability, direct coupling, and Marantz HDAM technology. With 100W per channel (8Ω), MM/MC phono input, multiple line inputs, tape monitoring, tone controls, loudness compensation, and speaker A/B switching. 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 Guidelines 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Dual mono construction, high current power supply, direct coupling, HDAM modules, MM/MC phono stage, multiple inputs, speaker switching.

Feature	Description
Power Output	100W per channel (8Ω), 150W per channel (4Ω)
Inputs	Phono (MM/MC), CD, Tuner, Aux, Tape 1, Tape 2
Outputs	Speaker A/B, Tape Out, Pre Out
Tone Controls	Bass, Treble, Loudness
Phono Stage	MM/MC switchable with loading options
Construction	Dual mono, direct coupling
Power Supply	High current toroidal transformer
HDAM Technology	Marantz Hyper Dynamic Amplifier Module
Speaker Switching	A/B speaker selection
Protection Circuit	DC protection, thermal protection

Installation

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

Positioning: Ensure at least 10cm clearance on all sides for proper ventilation.
Speaker connections: Connect speakers to Speaker A or B terminals, observing correct polarity.
Source connections: Connect turntable, CD player, tuner, etc. to appropriate inputs.
Power connection: Plug into AC power outlet last.

WARNING! Ensure proper ventilation to prevent overheating. Do not block ventilation openings.

First-Time Setup

Power on amplifier; allow 30 seconds for stabilization.

Input selection: Rotate INPUT SELECTOR to desired source (Phono, CD, Tuner, etc.).
Phono setup: Set PHONO switch to MM or MC depending on cartridge type.
Speaker selection: Press SPEAKER A and/or B buttons for desired speaker output.
Volume control: Start with volume at minimum, then adjust to comfortable listening level.
Tone controls: Set BASS and TREBLE to neutral (12 o'clock) position initially.

CAUTION! Always turn volume to minimum before powering on or changing sources.

Specifications

Power Output: 100W + 100W (8Ω), 150W + 150W (4Ω)
Frequency Response: 5Hz - 100kHz (+0/-3dB)
Total Harmonic Distortion: 0.005% (1kHz, 8Ω)
Input Sensitivity: Phono MM: 2.5mV, Phono MC: 0.25mV, Line: 150mV
Signal-to-Noise Ratio: Phono MM: 86dB, Line: 102dB
Input Impedance: Phono MM: 47kΩ, Phono MC: 100Ω
Damping Factor: 200 (8Ω, 1kHz)
Power Consumption: 380W maximum
Dimensions: 440mm W × 150mm H × 415mm D
Weight: 18.5kg

Controls and Settings

Front panel: POWER switch, INPUT SELECTOR, VOLUME, BASS, TREBLE, LOUDNESS, SPEAKER A/B, TAPE MONITOR.

Rear panel: Phono inputs (MM/MC), line inputs, tape inputs/outputs, speaker terminals, pre-out, AC input.

Tone Controls: BASS (±10dB at 100Hz), TREBLE (±10dB at 10kHz). Loudness: Compensation for low-volume listening. Phono: MM/MC selection with appropriate loading. Speaker Selection: A, B, or A+B speaker outputs. Tape Monitoring: Monitor tape decks during recording.

Connecting Devices

Phono: Connect turntable to PHONO inputs (set MM/MC switch accordingly). Line sources: Connect to CD, TUNER, AUX inputs. Tape: Connect tape deck to TAPE 1 or TAPE 2.

Turn off amplifier before making connections.
Use high-quality interconnects for best performance.
Ensure proper grounding for phono connections.
Match cable types to inputs (RCA to RCA).

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

Operation Guidelines

Optimal performance requires proper operation procedures.

Power sequence: Turn on sources first, then amplifier. Reverse when powering down.
Volume control: Always start at minimum volume when changing sources.
Input selection: Rotate INPUT SELECTOR to match connected source.
Phono operation: Ensure correct MM/MC setting for your cartridge.
Speaker selection: Use A, B, or both for multiple speaker systems.
Tape monitoring: Press TAPE MONITOR to listen to tape playback while recording.
Tone adjustments: Use BASS and TREBLE controls to suit room acoustics and personal preference.
Loudness compensation: Engage LOUDNESS for better bass response at low volumes.

WARNING! Do not operate with covers removed. High voltages present inside.

Maintenance

Regular maintenance ensures long-term reliability and performance.

Cleaning: Use dry, soft cloth for exterior. Do not use chemicals or solvents.
Ventilation: Keep ventilation openings clear of dust and obstructions.
Connections: Periodically check and clean input/output connections.
Storage: Keep in dry environment away from extreme temperatures.

CAUTION! Unplug from AC power before any cleaning or maintenance.

Regulatory Information

CE compliant: Meets European safety and EMC standards. Manufactured to ISO 9001 quality standards. Copyright © Marantz. For support, contact authorized Marantz service centers. Serial number located on rear panel.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Speaker selection/connections	Check SPEAKER A/B buttons; verify speaker connections; ensure volume not at minimum.
Distorted sound	Overload/connections	Reduce volume; check input levels; verify proper source connections.
Hum or noise	Grounding/cables	Check phono grounding; ensure proper cable routing; verify interconnect quality.
One channel silent	Balance/cables	Check balance control; verify interconnects; test with different source.
Protection circuit active	Overload/short circuit	Check speaker wires for shorts; allow cool-down if overheated; reduce volume.

Service: Contact authorized Marantz service center for internal repairs.

Warranty: Refer to warranty card for terms and conditions.