Conformal coated PCB (marinized), Class D, DSP/amp, 60W x 8 @2Ω, 40w x8 @ 4Ω, variable x-overs h/l pass adjustable up to 48dB/oct slopes, GUI, 31 band parametric or graphic EQ, 12v/signal/DC offset turn on modes,10-22kHz@-3dB freq res, -30-+6dB sub control, Product info: 8-channel car amplifier with digital signal processing 40 watts RMS x 8 at 4 ohms 60 watts RMS x 8 at 2 ohms non-bridgeable Class D amp technology frequency response: 10-22,000 Hz Digital processing: DSP and EQ tuning tool adjustments made via USB connection to a Windows PC save up to 10 presets 6 assignable preamp and speaker-level inputs high-level input adapters included 31-band EQ (selectable parametric and graphic) adjustable high-, low-, and band-pass filters: 20-20,000 Hz selectable filter slopes: 6, 12, 18, 24, 30, 36, 42, 48 dB/octave adjustable delay: 0 to 12ms in 0.2ms increments phase adjustment: 0/180° Other Features: includes wired remote bass control for ch 7 & 8 conformal coated PCB fuse rating: 40A x 1 wiring and hardware not included with amplifier 8-gauge power and ground leads recommended dimensions: 5.67"W x 1.95"H x 9.35"D warranty: 1 year MFR # DSP6840AM Item # 108DSP6840