This Package Includes the Following Items:1 x Harmony Audio HA-A400.4 Car 4 Channel 800W Fulll Range Amp1 x Harmony Audio HA-AK8 Car 8 Gauge Amp Install Kit1 x Harmony Audio HA-C65 Car Stereo Carbon 6.5" Replacement 350W Speakers & Grills1 x Harmony Audio HA-C69 Car Stereo Carbon 6x9" Replacement 500W Speakers & Grills1 x Buick Chevy Pontiac Multi Model Aftermarket 6.5" 6.75" Speakers AdapterHarmony Audio HA-A400.4 Car 4 Channel 800W Fulll Range Amp:Specifications: Alloy Series 4 Channel Class D Full Range AmplifierPower Handling: 14.4V @ 4 Ohm Stereo 75 Watts RMS x 4 150 Watts PEAK x 414.4V @ 4 Ohm Bridged 200 Watts RMS x 2400 Watts PEAK x 214.4V @ 2 Ohm Stereo 85 Watts RMS x 4 170 Watts PEAK x 4Frequency Response: 10Hz-30kHzFeatures:Includes HA-EASY x 2 Speaker Wire to RCA Adapter to Simplify InstallationCompatible with both Aftermarket and Factory Source with DC Offset Feature Harmony Audio HA-C65 Car Stereo Carbon 6.5" Replacement 350W Speakers & Grills: Specifications:6-1/2" Carbon Series 2-Way Car Speaker PairPower Handling: Peak: 350 wattsRMS: 150 wattsFrequency Response: 45Hz - 21kHzMounting Depth: 2-3/8" Single 4 OhmHarmony Audio HA-C69 Car Stereo Carbon 6x9" Replacement 500W Speakers & Grills: Specifications:Power Handling: Peak: 500 wattsRMS: 200 wattsFrequency Response: 35Hz-21kHzMounting Depth: 3-3/8"Single 4 Ohm