This Package Includes the Following Items1 x HA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Fulll Range Speaker or Sub Amplifier1 x HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit1 x 43DSC3504 3.5" DS Series 15W RMS 4 Ohm Coaxial Car Audio Speakers2 x 43DSC69304 6"x9" DS Series 70W RMS 3 Way 4-Ohm Coaxial Car Audio SpeakersHA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Fulll Range Speaker or Sub AmplifierPower Handling:14.4V @ 4 Ohm Stereo75 Watts RMS x 4150 Watts PEAK x 414.4V @ 4 Ohm Bridged200 Watts RMS x 2400 Watts PEAK x 214.4V @ 2 Ohm Stereo85 Watts RMS x 4170 Watts PEAK x 4Frequency Response: 10Hz-30kHzSignal to Noise Ratio: 95dB, A-weightedRCAs: InputTurn On: DC Offset or 12V RemoteRecommended External Fuse: 40ARecommended Wiring Power Gauge: 8 GaugeDimensions: 8-5/8" Width x 6-1/8" Width x 2" Height43DSC3504 3.5" DS Series 15W RMS 4 Ohm Coaxial Car Audio SpeakersWoofers: 3-1/2"Midranges: n/aTweeters: 1/2"Impedance : 4 ohmsMax rec. Amp power: 30w peakMax rec. Amp power: 6-15w rmsSensitivity: 88dbFreq. Response: 80-20k hzMounting depth: 1-3/4"Mounting diameter: 3"Grilles: no43DSC69304 6"x9" DS Series 70W RMS 3 Way 4-Ohm Coaxial Car AudioWoofers: 6x9"Midranges: 2"Tweeters: 1/2"Impedance : 4 ohmsMax rec. Amp power: 140W PEAKMax rec. Amp power: 6-70W RMSSensitivity: 92dbFreq. Response: 30-20k hzMounting depth: 3-1/4"Mounting diameter:5-5/8 x 8-7/16"Grilles: yes