High Performance Marine Grade 2/1 Channel Operation Non-Corrosive Heat Sink Conformal Coated Printed Circuit Boards 70 x 2 into 4 Ohms 20Hz-20kHz/.01%THD 140 x 2 into 1 Ohm 20Hz-20kHz/.01%THD 280 watts x 1 - 4 Ohms 20Hz-20kHz/.01%THD Bass Extender Control 1-15db at 45kHz Anti-Corrosion Gold Plated Speaker Terminals Tri-Amp Design Speaker Terminal Splash Protector Boots Hi/Low Pass Electronic Crossover