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Infinity Reference 475a User Manual

Infinity Reference 475a
10 pages
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Infinity Reference 475a Specifications

General IconGeneral
Damping factor6.3
Amplifier classA/B
Frequency range10 - 100000 Hz
Input sensitivity100 mV
Built-in crossoverNo
Audio output channels4.0 channels
Peak power per channel117 W
Signal-to-Noise Ratio (SNR)85 dB
Total Harmonic Distortion (THD)0.02 %
RMS power output per channel (2 Ohm)90 W
RMS power output per channel (4 Ohm)75 W
DC-in jackYes
Audio (L/R) in21
USB 2.0 ports quantity0
Speakers connectivity typeClamp terminals
PurposeCar
MaterialAluminum
Cooling typePassive
Product colorAluminium, Grey
Volume controlRotary
Connectivity technologyWired
Maximum current72 A
DC input voltage10 - 14 V
Weight and Dimensions IconWeight and Dimensions
Depth360 mm
Width229 mm
Height68 mm

Summary

INTRODUCTION

Installation Warnings and Tips

Crucial safety advice and practical tips for safe and effective amplifier installation to prevent damage or injury.

CHOOSING A LOCATION AND MOUNTING THE AMPLIFIER

Power, Ground, Remote, and Speaker Connections

Detailed guidance on connecting power, ground, remote, and speaker leads, including wire gauge and setup essentials.

APPLICATIONS - 1300a AND 1600a

Series Subwoofer/Voice Coil Connection

Diagram and explanation for connecting multiple subwoofers or voice coils in series for optimal performance.

Parallel Subwoofer/Voice Coil Connection

Diagram and explanation for connecting multiple subwoofers or voice coils in parallel for optimal performance.

APPLICATIONS – 475a: Stereo, 3-Channel, and Bridged Operation

APPLICATIONS – 475a: Tri-mode and Bridge Configurations

APPLICATIONS – 5350a

Input Mode Switch Function

Explains the function of the input mode switch for selecting internal or external subwoofer signal sources.

INSTALLATION AND SETUP

Setting Crossover and Input Sensitivity

Guides on setting crossover frequencies and input sensitivity for optimal audio performance and distortion prevention.

Remote Control, Bass Boost, and Troubleshooting

Details on using optional remote controls, Bass Boost, and troubleshooting common amplifier operational issues.

SPECIFICATIONS SUMMARY

Need to Hear From You

Register Your Purchase Online

Instructions for registering the product online for warranty and support services through the Infinity website.

LIMITED ONE-YEAR WARRANTY

Warranty Coverage and Exclusions

Details what the warranty covers and explicitly excludes, including accident, misuse, and unauthorized repairs.

Obtaining Warranty Service

Provides instructions on how to contact Infinity or authorized centers and the necessary documentation for service.

Warranty Limitations

Covers limitations on implied warranties and consequential damages, defining the scope of Infinity's liability.

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