Product info: mono subwoofer amplifier 600 watts RMS x 1 at 4 ohms 1000 watts RMS x 1 at 2 ohms 2000 total watts RMS x 1 at 4 ohms when strapped to a second Reference 10001A Class D amp technology variable low-pass filter (32-320 Hz, 12 dB/octave) variable bass boost (0-12 dB at 45 Hz) phase switch (0, 180 degrees) wired remote bass control module included More Info: preamp and speaker-level inputs bare wire to RCA adapters included for high-level input preamp outputs wiring and hardware not included with amplifier 4-gauge power and ground leads recommended fuse rating: 35A x 3 dimensions: 12-5/8"W x 2-1/4"H x 7-3/4"D Reference 10001A mono subwoofer amplifier delivers a blistering 1,000-Watts RMS using Class D amplifier topology to ensure cool running and minimal current draw. Speaker-level inputs allow this amplifier to integrate into almost any system, even one using your car's factory radio — and Infinity includes RCA-to-speaker wire adapters so you'll make the right connections. You can use the low-pass filter and variable bass boost to maximize the performance of your subwoofer and enclosure, while a phase switch ensures that the bass will blend well with your full-range speakers. Specifications Specification Details Power Output 600W RMS × 1 (4 ohms), 1000W RMS × 1 (2 ohms) Max Power 2000W MAX Amplifier Class Class D Frequency Response 10Hz – 320Hz Low-Pass Filter Variable (32–320 Hz, 12 dB/octave) Bass Boost 0–12 dB at 45 Hz Phase Switch 0° / 180° Remote Control Wired remote level control included Inputs / Outputs Preamp inputs and outputs Speaker-Level Inputs Yes (speaker wire-to-RCA adapters included) Recommended Wiring 4-gauge power and ground (not included) Fuse Rating 35A × 3 Dimensions (W × H × D) 320 × 55.5 × 180 mm (12-5/8" × 2-3/16" × 7-1/8")