Alpine KTA-450 4-Channel Power Pack Amplifier

Alpine KTP-1900 car audio power pack amplifier 4 Channel

Alpine KTA-450 Power Pack Car Amplifier

Alpine KTP-445A Compact Power Pack 4-Channel Car Audio Amplifier 45W RMS x4

Alpine KTA450 4 Channel Compact Amplifier with 45W Dynamic Peak Power

Audio Art 70.2X SQ 2 channel car audio amp made in the US vintage, old school

Alpine KTA-450 4 Channel Amp with Dynamic Peak Power 45W RMS x 4 At 2 Or 4 Ohms