Car Audio Amplifiers

Alpine Car Audio Amplifier 4 Channels (Class A) Code: R2-A75M

The Alpine R2-A75M mono car amplifier reproduces low frequencies and delivers up to 750 W RMS at 2 Ohms. Class D amplification helps keep its size compact, while high-efficiency transformers,...

The Alpine R2-A75M mono car amplifier reproduces low frequencies and delivers up to 750 W RMS at 2 Ohms. Class D amplification helps keep its size compact, while high-efficiency transformers, low-noise capacitors, and dual “Sierra” correction circuits help reduce distortion.

The GAIN level, variable low-pass filter, subsonic filter, and bass boost are...

See Description & Specifications See Description & Specifications
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Description & Specifications

The Alpine R2-A75M mono car amplifier reproduces low frequencies and delivers up to 750 W RMS at 2 Ohms. Class D amplification helps keep its size compact, while high-efficiency transformers, low-noise capacitors, and dual “Sierra” correction circuits help reduce distortion.

The GAIN level, variable low-pass filter, subsonic filter, and bass boost are adjusted using the controls on the top panel. The speaker-level input supports automatic turn-on, and the amplifier is compatible with the optional RUX-KNOB2 bass controller.

  • Channels: 1
  • Amplifier class: D
  • Maximum total power: 1500 W
  • RMS power per channel at 2 Ohms: 1 x 750 W
  • RMS power per channel at 4 Ohms: 1 x 500 W
  • Low-pass filter: Variable, 50–400 Hz (-24 dB/oct)
  • Subsonic filter: Variable, 8–40 Hz (-24 dB/oct)
  • Frequency response: 10–400 Hz
  • Damping factor: >250
  • Operating voltage: 14.4 V DC (permissible range 9–16 V)
  • RCA input sensitivity: High 0.5–10 V, low 0.2–4.0 V
  • Speaker-level input: With automatic turn-on
  • Terminals: Screw terminals for speakers and power, located on one side
  • Power/status indicator: LED on the top panel
  • Power cable: AWG 4
  • Speaker cable: AWG 8
  • Dimensions: 282 x 55 x 165 mm
  • Weight: 3.5 kg

Manufacturer

Product Number
R2-A75M
Number of Channels
4 Channels
Output Power (4 Ohm)
-
Amplifier class
A

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.