The Alpine KTP-445A is a compact head unit power pack that increases the power available from compatible Alpine head units. It provides enhanced output to drive factory or aftermarket speakers without replacing the receiver.

The module delivers four channels of amplification rated at 4 x 45W RMS (4 x 100W maximum). Its small form factor is designed to mount behind the head unit and uses a plug and play connection for supported Alpine models for a straightforward installation with no additional wiring.