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Mark Levinson 432 User Manual

Mark Levinson 432
36 pages
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Owner’s Manual
Nº432
Nº431
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Mark Levinson 432 Specifications

General IconGeneral
Input Impedance100k ohms
Voltage Gain26.8dB
Power Output400W per channel into 8 ohms
Frequency Response20Hz - 20kHz (±0.1dB)
Signal to Noise Ratio>85dB
TypeStereo Power Amplifier

Summary

Important Safety Instructions

Unpacking

Product Registration

Guide for registering the product within the warranty period.

Installation Considerations

Placement and Ventilation

Optimal positioning and airflow requirements for the amplifier.

Power and Operation

Details on power needs, warm-up, operating states, and continuous use.

Special Design Features

Massive Power Supply

Description of the amplifier's robust power supply components.

Balanced Design

Explanation of the balanced input topology and circuit design.

Extensive Protection

Details on the built-in protection circuits against fault conditions.

Front Panel

Indicator LED

Explains the LED behavior indicating operating state and faults.

Power Button

Operation of the power button for turning the unit on and off.

Standby Button

Controls the transition between standby and sleep modes.

Rear Panel

Rear Panel Handles

Information regarding lifting and moving the unit using rear handles.

Loudspeaker Binding Posts (Outputs)

Description of the output terminals for connecting loudspeakers.

Unbalanced Input

Details on connecting unbalanced audio signals via RCA connectors.

Balanced Input

Details on connecting balanced audio signals via XLR connectors.

RS-232 Communications Port

Serial port for software upgrades and external control systems.

Link2 Communication Ports

Ports for linking Mark Levinson components for control sharing.

Trigger In and Out Connectors

Connectors for DC trigger control of power on/off sequences.

Power Save Mode Switch

Switch to determine response to trigger signals (sleep vs. standby).

~ac Mains Connector

Location of the IEC power receptacle for connecting the mains cord.

Linking

Making Link Connections

Guidelines for connecting components using Link or Link2 ports.

Constructing Link Communication Cables

Instructions for building custom communication cables for linking.

Creating a Slave Chain

Process for establishing a communication chain among components.

Link Controls

How linked components share and manage controls.

Troubleshooting

No audio and the front panel indicator LED is not lit

Steps to diagnose and resolve no audio with a dark indicator LED.

No audio and the front panel indicator LED is dimly lit

Steps to resolve no audio when the LED is dimly lit (sleep mode).

No audio and the front panel indicator LED is blinking slowly

Steps to resolve no audio when the LED blinks slowly (standby mode).

No audio and the front panel indicator LED is blinking rapidly, remaining lit most of the time

Steps to resolve no audio with a rapidly blinking LED (power fault).

No audio and the front panel indicator LED is blinking rapidly, remaining lit about half of the time

Steps to resolve no audio with a rapidly blinking LED (signal fault).

No audio and the front panel indicator LED is blinking rapidly, remaining unlit most of the time

Steps to resolve no audio with a rapidly blinking LED (thermal fault).

No audio and the front panel indicator LED is lit at full brightness

Steps to resolve no audio when the LED is fully lit (no signal).

The amplifier keeps powering off

Troubleshooting steps for an amplifier that repeatedly powers off.

If all else fails...

Final troubleshooting steps and contact information.

Care & Maintenance

Specifications

Declaration of Conformity

Dimensions, N°432

Dimensions: N°431

Rack-Mounting

Notes

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