Alpine R2-A75M

Alpine’s “R-Series” line of speakers, subwoofers and amplifiers has a tradition of sound quality that can be heard from afar, and the newly added R-Series amplifiers are no exception. In addition to their best-in-class performance, these amplifiers are tuned to enhance the characteristics of the R-Series speakers and subwoofers, giving you the legendary R-Series experience. They have a 15% smaller footprint compared to previous models and are easier to install.

If you like your music loud and clear, our R-Series R2-A75M mono amplifier is for you. It reproduces the bass in your music cleanly so you can enjoy the enhanced realism you want, even when playing high-resolution music. Alpine has built some of its top-of-the-line amplifier technology into this R2 Series amplifier, including high-efficiency transformers, premium low-noise specialty capacitors, and low-distortion dual "Sierra" feedback/correction circuits.

The Alpine R2-A75M mono amplifier produces up to 750 watts RMS @ 2 Ohms, making it a perfect match for Alpine's R-Series subwoofer line. Advanced Class-D amplifier technology makes this powerful amplifier small enough to fit almost anywhere. You can adjust the amplifier's low-pass filter, bass boost, and subsonic filter to get just the right bass tone. Plus, you can add the optional RUX-KNOB2 remote bass knob to control your bass from your dashboard.

Generally

Class-D amplification (Digital)
Channel configuration: Mono
Top controls
Thermal management control
LED power/status indicator on top
High-level input with remote control
Crossover: Adjustable low-pass filter (LPF) and variable subsonic filter
Adjustable gain control
Bass EQ
Ready for remote control of base (RUX-KNOB2)

Maximum output power

Total maximum power: 1500W

RMS power

Per channel in 2 Ohm, 14.4V (≤1%THD+N): 1 x 750W
Per channel in 4 Ohm, 14.4V (≤1%THD+N): 1 x 500W

Sound setting

Crossover: Variable LPF: 50-400Hz (-24dB/oct)
Crossover: Variable subsonic filter: 8Hz-40Hz (-24dB/oct)

Generally

Power requirement: 14.4 V.DC (9 - 16 V allowed)
Input sensitivity (RCA input): Hi: 0.5V - 10V / Low: 0.2V - 4.0V
High-level input with automatic power-on
Cable size: Power cable AWG 4, speaker cable AWG 8
Frequency response: 10Hz – 400Hz
THD+N (@ 10W into 4 Ohms): <0.04%
Damping factor: >250
Weight: 3.5 kg

Measure

Heat sink (WxHxD) mm: 282 x 55 x 165