Features: 4-channel amplifier, 50 watts RMS x 4 at 4 ohms (70 watts RMS x 4 at 2 ohms), 140 watts RMS x 2 bridged at 4 ohms (4-ohm stable bridged), Variable low- and high-pass filters (35-300 Hz, 12 dB/octave), Class D amplifier design with NextD switching amp technology, IPX6 water-resistance rating, Corrosion-resistant cast aluminum chassis, Preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input), Fuse rating: 35A x 1, 8-gauge power and ground leads reco