Alpine PDR-V75 5 Channel Digital Amplifier - 100W RMS x 4 + 350W RMS x 1 PDR Series 5-Channel Class D Car Amplifier | RMS Power Rating: 4 ohms: 75 watts x 4 chan. + 250 watts x 1 chan. | 2 ohms: 100 watts x 4 chan. + 350 watts x 1 chan. Bridged | 4 ohms: 200 watts x 2 chan. + 350 watts. x 1 chan. | CEA-2006 compliant Variable high-pass filter (50-400 Hz, 12 dB/octave) on 4-channel section | Variable low-pass filter (50-400 Hz, 24 dB/octave) on sub channel | Variable subsonic filter (8-40 Hz, 24 dB/oct) on sub channel | Variable bass boost (0-12 dB at 50 Hz) on sub channel Preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input) | Class-D amplifier design | MOSFET power and output stages | Fuse rating: 40A x 2 | Dimensions: 10-3/4"W x 2"H x 6-1/2"D All PDR-Power amplifiers are individually tested and have certified power ratings. Each amp comes with their very own verification certificate documenting its actual power output exceeds the rating by a wide margin PDR-Power amplifiers come with a rotatable illuminated badge that makes a very attractive presentation when mounted vertical or horizontally