Kenwood KAC-7204 2-channel car amplifier 170 watts RMS x 2 at Crutchfield
Amazon.com: Kenwood 500W 2 Channels Performance Standard Series Stereo Power Car Amplifier with 4 Gauge Blue Amplifer Kit and Gravity Magnet Phone Holder Bundle : Electronics
Amazon.com: Kenwood 500W 2 Channels Dual Performance Standard Series Stereo Power Car Amplifier with Gravity Magnet Phone Holder Bundle : Everything Else
Kenwood eXcelon 4-Channel Power Amplifier - X302-4