Amazon.com: Kenwood KAC-HQR1004 Reference Series 1200W 4-Channel Car Amplifier : Electronics
Kenwood XR401-4 Reference Fit 4/3/2 Power Amplifier with 100W x 4 output at 2 ohms, 800W maximum power, Bass Knob Included, Speaker level Inputs and Signal Sensing Turn On - Creative Audio
KENWOOD 100W X 5 / VR606 / Audio Video Surround Receiver / Dolby Pro Logic | eBay