This Package Includes the Following Items:1 x Kicker 46CXA3604 Car Audio 4 Channel Amp 720W Peak Speaker Amplifier CXA360.41 x Harmony Audio HA-AK10 Car Stereo Complete 10 Gauge 600W Amp Amplifier Install Kit - Nickel2 x Buick Chevy Cadillac GMC Oldsmobile Factory Speaker Replacement Harness2 x Harmony Audio HA-C4 Car Stereo Carbon Series 4" Replacement 170W Speakers PairKicker 46CXA3604 Car Audio 4 Channel Amp 720W Peak Speaker Amplifier CXA360.4:SpecificationsPower Handling:90 Watts x 4 @ 2 Ohm Stereo RMS180 Watts x 4 @ 2 Ohm Stereo PEAK180 Watts x 2 @ 4 Ohm Bridged RMS360 Watts x 2 @ 4 Ohm Bridged PEAKFrequency Response: 10Hz - 20kHzSignal to Noise Ratio: 95dBDimensions: 12-7/16" Length x 2-3/8" Height x 7-3/16" WidthHarmony Audio HA-AK10 Car Stereo Complete 10 Gauge 600W Amp Amplifier Install Kit - Nickel:Buick Chevy Cadillac GMC Oldsmobile Factory Speaker Replacement Harness:Harmony Audio HA-C4 Car Stereo Carbon Series 4" Replacement 170W Speakers Pair: Specifications:4" Carbon Series 2-Way Car Speaker PairPower Handling: Peak: 170 wattsRMS: 70 wattsSensitivity: 89dBFrequency Response: 80Hz - 21kHzMounting Depth: 2-3/16" Mounting Cutout Diameter: 3-11/16" Tweeter Size: 1"Single 4 Ohm