Alpine R-A75M

Alpine R-A75M R-Series Mono Subwoofer Amplifier The Alpine R-A75M is a high-performance mono Class D amplifier engineered to deliver powerful and precise bass reproduction. As part of Alpine's R-Series, this amplifier offers 750 watts RMS at 2 ohms, ensuring your subwoofer receives clean and efficient power. Its compact design and advanced features make it an ideal choice for audiophiles seeking to enhance their car audio system with deep, impactful bass. Key Features Power Output 500W RMS x 1 @ 4Ω; 750W RMS x 1 @ 2Ω Amplifier Class Class D Frequency Response 10Hz – 400Hz Signal-to-Noise Ratio >85dB (1W into 4Ω) THD+N <0.02% (1W into 4Ω) Crossover Controls Variable low-pass filter (50Hz – 400Hz, 24dB/octave); Variable subsonic filter (8Hz – 40Hz, 24dB/octave) Bass Boost 0–12dB at 50Hz Input Sensitivity Low level: 0.1 – 4V; High level: 0.4 – 10V Optional Remote Compatible with Alpine RUX-KNOB.2 (sold separately) Dimensions (W x H x D) 10.75" x 2.13" x 10" Weight 7 lbs, 3 oz What’s in the Box 1 × Alpine R-A75M Mono Amplifier 2 × 40A ATO Fuses (installed) 4 × Mounting Screws 3 × Allen Wrenches (2mm, 2.5mm, 3mm) 1 × Owner’s Manual 1 × Alpine Verification Certificate (“Birth Sheet”) 1 × Warranty Information Sheet 1 × Installation Guide 1 × Alpine Registration Card Technical Specifications Model Number R-A75M Channels 1 (Mono) Power Output @ 4Ω 500W RMS x 1 Power Output @ 2Ω 750W RMS x 1 Frequency Response 10Hz – 400Hz Signal-to-Noise Ratio >85dB (1W into 4Ω) THD+N <0.02% (1W into 4Ω) Input Sensitivity Low level: 0.1 – 4V; High level: 0.4 – 10V Crossover Controls Variable LPF (50Hz – 400Hz, 24dB/octave); Variable subsonic filter (8Hz – 40Hz, 24dB/octave) Bass Boost 0–12dB at 50Hz Fuse Rating 40A × 2 Recommended Wiring 4 AWG power and ground leads Dimensions (W x H x D) 10.75" x 2.13" x 10" Weight 7 lbs, 3 oz Optional Remote Alpine RUX-KNOB.2 (sold separately)