Infinity’s Reference Series amplifiers offer impressive power and extensive controls for fine-tuning your sound — an ideal way to boost your music’s intensity and clarity. The heavy-hitting Infinity Reference 475a 4-channel amplifier sends 75 watts RMS to each of your front and rear speakers. Or, you can bridge the amp to 2-channel mode, and pump out 360 watts total to your two subs. The variable frequency filters and adjustable bass boost let you contour the amp’s output to suit your speakers or subs for more efficient output and cleaner low-end kick. Preamp outputs simplify hookup to another amp in your system, so system building is quick and easy. Direct-connect terminals make reliable connections without need for any crimping or soldering.
| Infinity Reference 475a | |
|---|---|
| Power Output | 75W RMS × 4 @ 4Ω 90W RMS × 4 @ 2Ω 180W RMS × 2 @ 4Ω (Bridged) |
| Amplifier Class | Class-AB |
| CEA-2006 Compliant | Yes |
| Filters | Variable High-/Low-Pass Filters (32–320 Hz, 12 dB/oct) |
| Bass Boost | 0–6 dB @ 50 Hz (Variable) |
| Power Supply | MOSFET |
| Inputs / Outputs | Preamp-Level Inputs and Outputs |
| Fuse Rating | 35A × 2 |
| Recommended Wiring | 4-Gauge Power and Ground (Not Included) |
| Dimensions (W × H × D) | 14-3/4″ × 2-11/16″ × 9″ |
| Warranty | 1 Year |
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