marantz ia 2232 sg manual

The Marantz IA 2232 SG is a high-performance integrated amplifier featuring 32W per channel output, MM phono input, tone controls, loudness compensation, and multiple audio inputs. This manual covers setup, operation, and maintenance for optimal audio performance.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Audio Sources 7. Operation Guide 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Integrated amplifier chassis, front panel controls, rear input/output terminals, remote control.

Feature	Description
Power Output	32W per channel (8Ω)
Phono Input	MM cartridge compatible
Tone Controls	Bass and treble adjustment
Loudness	Compensation for low-volume listening
Input Selection	Phono, CD, Tuner, Aux
Headphone Jack	6.3mm stereo headphone output
Speaker Terminals	Binding posts for A/B speaker sets
Power Switch	Main power on/off
Volume Control	Analog potentiometer
Remote Control	Infrared remote for basic functions

Installation

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

Connect speakers: Use speaker wire to connect to A or B speaker terminals.
Connect audio sources: Use RCA cables for Phono, CD, Tuner, or Aux inputs.
Connect power: Plug into appropriate AC power outlet.
Connect headphones: Insert into front panel headphone jack when needed.

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

First-Time Setup

Power on amplifier; verify all connections are secure.

Select input source: Turn INPUT selector to desired source (Phono, CD, etc.).
Adjust volume: Start with volume at minimum, gradually increase to desired level.
Set tone controls: Adjust bass and treble to personal preference.
Speaker selection: Choose A, B, or A+B for speaker output.

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

Specifications

Power Output: 32W + 32W (8Ω, 20Hz-20kHz)
Total Harmonic Distortion: 0.08% (8Ω, 1kHz)
Frequency Response: 10Hz-50kHz (+1/-3dB)
Input Sensitivity: Phono: 2.5mV, Line: 150mV
Signal-to-Noise Ratio: Phono: 76dB, Line: 92dB
Tone Control Range: Bass: ±8dB (100Hz), Treble: ±8dB (10kHz)
Power Requirements: 120V AC, 60Hz (or local voltage)
Dimensions: 440mm (W) × 115mm (H) × 310mm (D)
Weight: 7.5kg

Controls and Settings

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

Rear Panel: Phono input, CD input, Tuner input, Aux input, Speaker terminals (A/B), AC power input.

Tone Controls: Bass (±8dB at 100Hz), Treble (±8dB at 10kHz). Loudness: Compensates for Fletcher-Munson curve at low volumes. Speaker Selection: A, B, or A+B outputs. Input Selection: Phono (MM), CD, Tuner, Aux.

Connecting Audio Sources

Phono: Connect turntable with MM cartridge. CD: Connect CD player. Tuner: Connect FM/AM tuner. Aux: Connect additional audio source.

Turn off amplifier before making connections.
Use quality RCA cables for all line-level connections.
Ensure proper grounding for phono input if required.
Match input selector to connected source.

Tip: Use shielded cables for phono input to minimize hum and noise.

Operation Guide

Basic operation procedures for daily use.

Power on: Turn power switch on; wait for amplifier to initialize.
Select source: Turn input selector to desired source.
Adjust volume: Start low, increase gradually to desired listening level.
Use tone controls: Adjust bass and treble to suit music and listening environment.
Loudness compensation: Engage for low-volume listening.
Headphone use: Insert headphones; speakers automatically mute.
Speaker selection: Choose between A, B, or both speaker sets.

WARNING! Avoid maximum volume settings for extended periods to prevent speaker damage.

Maintenance

Regular maintenance for optimal performance and longevity.

Cleaning: Use dry, soft cloth for exterior; avoid chemicals.
Ventilation: Ensure adequate airflow around unit.
Connections: Periodically check and secure all cable connections.
Storage: Keep in dry, dust-free environment when not in use.

CAUTION! Unplug from power before cleaning. Do not use liquid cleaners.

Regulatory Information

Complies with relevant safety and EMC standards. Manufactured under quality control standards. Copyright and trademarks owned by Marantz. For technical support and service, contact authorized Marantz service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Volume control/Speaker selection	Check volume level; verify speaker selection; ensure source is playing.
Distorted sound	Overload/Connections	Reduce volume; check source material; verify cable connections.
Hum or noise	Grounding/Cables	Check phono grounding; use shielded cables; separate from power cables.
One channel silent	Balance/Cables	Check balance control; verify RCA cables fully inserted; test source.
Remote not working	Batteries/Obstructions	Replace batteries; ensure line of sight to IR sensor; check range.

Reset: Power cycle amplifier if experiencing issues.

Service: Contact authorized Marantz service center for internal repairs.