Chance to own a rare audiophile Hifi 2 channel amp. These don't come up for sale very often. Rated 8/10 as far as condition. All the terminal connections are 24k gold plated. Includes original box and Manual. Any further questions feel free to shoot me a message. Will ship at your expense. HELIX created the Competition A2 amplifier for those of you who want an amp with massive power and uncompromised sonic fidelity. This 2-channel workhorse can drive two 4-ohm speakers with 150 watts RMS each — but that's not all it can do. Because it's extremely stable, you can connect the A2 to a pair of 1-ohm subs, and pump 395 watts RMS to each of them. Bridge the amp to mono mode, and the mighty A2 can blast out 790 watts RMS to a 2-ohm sub. 2-channel car amplifier 150 watts RMS x 2 at 4 ohms (270 watts x 2 at 2 ohms) 395 watts RMS x 2 at 1 ohm 540 watts RMS x 1 bridged output at 4 ohms (790 watts RMS x 1 bridged at 2 ohms) Class A input stages, Class AB output 24-karat gold-plated RCA input, power, and speaker connections double-sided copper plated circuit boards noise-free inputs (preamp) stereo or mono capable with Real Mixed Input option Variable low-pass/bandpass filters (15-6000 Hz) variable high-pass filter (15-6000 Hz) tunable bass boost (0-9 dB from 30 to 120 Hz ) 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier fuse rating: 20A x 4 18-1/4"W x 1-7/16"H x 9-1/2"D