This Package Includes the Following Items: 1 x HA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Full Range Speaker or Sub Amplifier 1 x HA-AK10 Car Stereo Complete 10 Gauge 600W Amp Amplifier Install Kit - Nickel 2 x HA-727800 Factory Speaker Replacement Harness 2 x HA-65 Car Stereo Rhythm Series 6.5" Replacement 300W Speakers & Grills 2 x HA-827805 Multi Model Aftermarket 6.5" Speakers Adapter Kit HA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Full Range Speaker or Sub Amplifier: Alloy Series 4 Channel Class D Full Range Amplifier Power Handling: 14.4V @ 4 Ohm Stereo 75 Watts RMS x 4 150 Watts PEAK x 4 14.4V @ 4 Ohm Bridged 200 Watts RMS x 2 400 Watts PEAK x 2 14.4V @ 2 Ohm Stereo 85 Watts RMS x 4 170 Watts PEAK x 4 Frequency Response: 10Hz-30kHz Signal to Noise Ratio: 95dB, A-weighted RCAs: Input Turn On: DC Offset or 12V Remote Recommended External Fuse: 40A HA-AK10 Car Stereo Complete 10 Gauge 600W Amp Amplifier Install Kit - Nickel: 17FT Flexible Matte Gray & Black RCA Cable 17FT Flexible Matte Blue Remote Wire 6FT Split Loom Mini ANL Fuse Holder 60 Amp Mini ANL Fuse (2) 10GA Blue & Black 5/16" Ring Terminals (2) 10GA Blue & Black Spade Terminals (5) 16GA Blue & Black Spade Terminals HA-65 Car Stereo Rhythm Series 6.5" Replacement 300W Speakers & Grills: 6-1/2" Rhythm Series 2-Way Car Speaker Pair Power Handling: Peak: 300 watts RMS: 100 watts Sensitivity: 90dB Frequency Response: 40Hz-20kHz Mounting Depth: 2 3/8" Mounting Cutout Diameter: 5 11/16" Tweeter Size: 1/2" Single 4 Ohm 100W RMS