Features and Functions 6-Channel Street Power competition amplifier Wide range dual crossovers allowing band-pass filtering Variable bass boost Variable subsonic filter Ducted Air fan cooling system Space-age technology for cooler output devices Proprietary gold panel mount RCA Connectors Dash mount remote gain control available Specifications Power @ 4: 6 x 165 watts Power @ 2: 6 x 275 watts Power @ 4 Bridged: 3 x 550 watts THD @ Rated Power lt; 0.05% Signal to Noise Ratio gt; 104dB Channel separation gt; 60dB Frequency Response 10Hz to 30,000Hz 1dB Input Sensitivity .25v to 8v Dimensions in mm: 241(W) x 62(H) x 573(L) Overall: 241(W) x 62(H) x 614(L)