The Alpine R-A75M is a compact digital monoblock amplifier that delivers up to 1500W max output and is engineered to pair with R-Series subwoofers for high-output bass systems.

The amplifier uses a fully digital amplification circuit for improved efficiency and a smaller heat sink. It measures 274mm in width x 223mm in length and incorporates an improved heat sink and protection circuit design to prevent thermal shut-down. The design includes high-capacity capacitors and audiophile-grade components for accurate bass reproduction.

Connections include 2-channel RCA inputs that accept low and high-level speaker signals, a power terminal that accepts up to 4 AWG cable, Bass EQ with a 50Hz boost up to +12dB, a subsonic filter, and support for the optional RUX-KNOB2 remote bass level control. The R-A75M is designed to work with Alpine R-Series subwoofers such as the R-W12D2 and R-W10D2.