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Alpine's legendary R-Series
Alpine R-Series includes amplifiers, subwoofers, component sets and coaxial speakers. Over the years, the R-Series has become synonymous with the best possible sound quality, performance and reliability for car audio systems.
The new R-Series amplifiers further reinforce this reputation.
R2-A75M is a Class D mono amplifier designed for subwoofers.
The amplifier is easier to install and use than ever before. Compared to the previous model, the new R2-A75M has a smaller physical footprint, and all controls are located under the cover on top of the amplifier.
Smaller footprint
The R2-A75M is 15% smaller than the previous model (R-A75M), yet delivers the same amount of power.
Versatile control options
All the amplifier's controls are located under the cover of the R2-A75M. The subsonic filter allows you to cut out the lowest frequencies (8Hz-40Hz), while the adjustable low-pass filter covers 50-400Hz. Both the subsonic and low-pass filters have a 24dB slope. The amplifier also features a Bass EQ, allowing you to boost the subwoofer level (0 – +12dB) at 50Hz.
Easier installation
The amplifier was also designed with installation and usability in mind. All power, speaker and RCA connections are located along the same edge, and all controls are located under the cover on top of the amplifier. The amplifier's footprint has also been reduced by 15% compared to the previous generation R-Series amplifier.
The amplifier also does not require separate mounting feet, as the mounting holes are integrated into the amplifier's chassis.
RUX-Knob2
The Alpine R2-A75M is compatible with the RUX-Knob2 level control, available as an optional accessory.
The R2-A75M is the perfect amplifier for R-Series subwoofers
All R-Series amplifiers are designed to be the perfect match for R-Series subwoofers and speaker sets.
R-Series coaxial and component sets are also Hi-Res Audio certified.
General
- Class D mono amplifier
- Controls on top of the amplifier
- Advanced thermal management
- Speaker-level input with auto start
- Adjustable low-pass filter and subsonic filter
- Bass EQ
- All connections on the same side
- Compact size, easy to install
- Compatible with the RUX-KNOB2 level control
- 1 x 750W / 2 Ohm, 14.4V (≤1%THD+N)
- 1 x 500W / 4 Ohm, 14.4V (≤1%THD+N)
- Crossover: Adjustable LPF: 50-400Hz (-24dB/oct)
- Subsonic: Adjustable LPF: 8-40Hz (-24dB/oct)
- Operating voltage: 14.4 V.DC (9 – 16 V)
- Input sensitivity (RCA inputs): Speaker-level: 0.5V – 10V / RCA: 0.2V – 4.0V
- Speaker-level input with auto start
- Recommended cables: Power/Ground: 25mm², Speaker: 1.5mm² – 8mm²
- Frequency response: 10Hz – 400Hz
- THD+N (@ 10W, 4 Ohm): <0.04%
- Damping factor: >250
- Weight: 3.5kg
- Dimensions (WxHxD) mm: 282 x 55 x 165