Alpine KTP-445U Power Pack - Car - amplifier - external - 4-channel

Key Features and Benefits: CompactCompact size lets the KTP-445U fit where most amplifiers won't. The KTP-445U comes equipped with the RCA and Auto-Sensing-Speaker level connectors and it fits behind the head unit in the dash of most vehicles. It's small and compact at only 7-7/16" x 1-1/2" x 2-1/2". The size and flexible wires make the Power Pack an easy choice to save space. Independent filters for rear & front inputsHigh-Pass selectable switches for Front & Rear allow frequency filtering for a wide variety of speakers. Choose from full range to selectable range: 60Hz, 80Hz or 120Hz to fine-tune your crossover points. Configurable inputsNeed configurable options for Speaker-Level or RCA inputs to the Power Pack? On the bottom panel of the Power Pack there are selectable input options to accommodate Speaker-Level (0.5V-10V) or RCA (0.2V - 4V) inputs. Selectable 2 Channel and 4 Channel options give you the control to determine source inputs, and can eliminate the need for Y-adapters. Accessible front & rear gainsThe Power Pack provides simple variable gain controls on the end panel for flexibility and a wide variety of system applications.