HA-400.1 Clas D Mono Amp Specifications: 14.4V@1 Ohm:400 Watts RMSx1/800 Watts PEAKx1 14.4V@2 Ohm:300 Watts RMSx1/600 Watts PEAK 1 Frequency Response:10Hz-180Hz Signal to Noise Ratio:95dB,A-weighted RCAs:Input and Full Pass Through Audio Output Turn On:DC Offset or 12V Remote Dimensions:9.19"Lengthx6.13"Widthx2"Height High Level Input Sensitivity:2.5V-40V Low Level Input Sensitivity:90mV-10V Gain:(Knob Variable) Low Pass Filter:40Hz-180Hz(Knob Variable) Subsonic Filter:0Hz-50Hz(Knob Variable) Frequency:30Hz-80Hz(Knob Variable) Bass Boost:0dB-12dB@50Hz(Knob Variable) Harmony Audio HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit - Nickel 17FT Flexible Matte Blue 8GA Power Cable 3FT Flexible Matte Black 8GA Power Cable 20FT Flexible Matte Blue 16GA Speaker Wire 17FT Flexible Matte Gray & Black RCA Cable 17FT Flexible Matte Blue Remote Wire 6FT Split Loom Mini ANL Fuse Holder 80 Amp Mini ANL Fuse (2) 8GA Blue & Black 5/16" Ring Terminals (2) 8GA Blue & Black Spade Terminals (5) 16GA Blue & Black Spade Terminals (4) Pan Head Screws (10) Wire Ties Car Audio Single 12" Vented Stereo Sub Box Ported Enclosure 5/8" MDF: Mounting Depth:15.25 Air Space:1.60 Cubic Feet Dimensions:Width 18.25"xHeight 13.25"xDepth 16.25" High Quality MDF and Gray Carpet Binding Terminal Cup(Accepts Banana Terminal Plugs OR Bare Wire 'up to 10GA') Kicker 43C124 12" C12 Series Subwoofer: Size:12" Impedance:4 Ohms SVC Power Watts:300W Peak/150W RMS Sensitivity:88.3 dB Freq. Response:27-500 Hz Mounting Depth:5-7/8" Mounting Diameter:11" Subwoofer Size: 12" Impedance: 4 Ohms SVC Power Watts: 300W Peak/ 150W RMS Car Audio Single 12" Vented Stereo Sub Box Ported Enclosure 5/8" MDF HA-400.1 Clas D Mono Amplifier