Marantz 2220 Owners Manual

The Marantz 2220 is a classic stereo receiver from the 1970s featuring 20 watts per channel, built-in AM/FM tuner, phono input for turntables, tape monitor, loudness control, and tone adjustments. This manual covers operation, connections, specifications, and maintenance for optimal performance of your vintage audio equipment.

Features at a Glance

Key components: Stereo amplifier, AM/FM tuner, front panel controls, rear panel connections.

Installation

Unpack and inspect contents. Place on stable, well-ventilated surface.

1. Connect speakers: Use speaker wire to connect to Speaker A or B terminals.
2. Connect turntable: Use phono input for magnetic cartridges.
3. Connect other sources: Use Aux input for CD players, tape decks, etc.
4. Connect antenna: FM antenna to FM terminals, AM antenna to AM terminals.
5. Plug into AC power outlet.

WARNING! Ensure proper ventilation; do not block rear vents. Use correct speaker impedance.

First-Time Setup

Power on receiver; set initial controls.

1. Set volume to minimum before power on.
2. Select input source: Phono, Aux, or Tuner.
3. Tune FM stations: Use tuning knob and meter for best reception.
4. Adjust tone controls: Set bass and treble to neutral position initially.
5. Test speakers: Use speaker selector to verify both channels working.

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

Specifications

• Power Output: 20 watts per channel RMS at 8 ohms
• Frequency Response: 20Hz to 20kHz ±1dB
• Total Harmonic Distortion: Less than 0.3%
• Input Sensitivity: Phono: 2.5mV, Aux: 250mV
• Signal-to-Noise Ratio: Phono: 70dB, Aux: 85dB
• Tuner Section: FM stereo, AM broadcast
• Dimensions: Standard 1970s receiver size
• Power Requirements: 120V AC, 60Hz
• Weight: Approximately 20 lbs

Controls and Settings

Front Panel: Power switch, Volume, Bass, Treble, Balance, Loudness, Input selector, Speaker selector, Tuning knob, Function switch.

Rear Panel: Speaker terminals, Input jacks, Antenna terminals, AC power cord.

Tone Controls: Bass ±10dB at 100Hz, Treble ±10dB at 10kHz. Loudness: Compensates for Fletcher-Munson curves. Filter: High-cut filter for noise reduction. Balance: Adjusts left/right channel balance.

Connecting Components

Speaker connections: Use proper gauge wire, observe polarity. Source connections: Phono for turntables, Aux for other line-level sources.

1. Turn off power before making connections.
2. Connect speakers to appropriate terminals (A or B).
3. Connect turntable ground wire to ground terminal.
4. Use high-quality interconnects for source components.
5. Connect FM antenna for best reception.

Tip: Keep signal cables away from power cords to reduce hum.

Tuner Operation

AM/FM stereo reception with tuning meter.

1. Select Tuner input on front panel.
2. Use tuning knob to find stations.
3. Watch tuning meter for strongest signal.
4. For FM stereo, stereo indicator will light when receiving stereo broadcast.
5. Use fine tuning for optimal reception.
6. Store favorite stations by noting dial positions.

WARNING! Do not force tuning knob; turn gently for precise tuning.

Maintenance

Regular cleaning of controls and connections. Deoxit recommended for control cleaning. Check and clean speaker connections periodically.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for wood cabinet. Use contact cleaner for controls if scratchy. Avoid liquids on front panel.

CAUTION! Do not use abrasive cleaners on wood or metal surfaces.

Regulatory Information

FCC compliant for home use. Manufactured by Marantz Company, Inc. Classic audio equipment - service may require vintage audio specialists. For historical reference and support, consult vintage audio forums and specialists.

Troubleshooting

Service: Consult vintage audio specialists for repair. Original schematics available from Marantz archives.