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Description

Alpine KTP-445U

The KTP-445U is a compact and efficient 4-channel power supply amplifier designed for seamless integration with car audio systems. It delivers 45W RMS per channel at 4Ω, providing clear and balanced sound for a variety of speaker setups. Its advanced circuitry ensures low distortion and high signal fidelity, while the durable aluminum chassis offers enhanced heat dissipation. The amplifier includes selectable input sensitivity, variable high-pass and low-pass filters, and is compatible with remote bass controllers for easy customization of your audio experience.


Specifications

Features
Feature Details / Notes
Purpose Amplifies both aftermarket and factory-installed head unit power output
Power Increase Up to 150% over the original head unit amplifier
Power Output 45W x 4 @ 4Ω/2Ω; 90W x 2 @ 4Ω bridged
Compatibility Works with aftermarket and factory-installed systems
Size Compact

Tech Specs
Spec Value
CEA-2006 Power Rating 45W x 4 @ 4Ω/2Ω
Bridged Power 90W x 2 @ 4Ω


About The Product

COMPACT

Compact 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 INPUTS

High-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 INPUTS

Need 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 GAINS

The Power Pack provides simple variable gain controls on the end panel for flexibility and a wide variety of system applications.

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Questions and Answers

Q1: What is the power output of the KTP-445U?

A1: 45W RMS per channel at 4Ω.

Q2: Can the KTP-445U work with remote bass controllers?

A2: Yes, it supports Alpine remote bass knobs for convenient control.

Q3: Does the amplifier have built-in crossovers?

A3: Yes, it includes variable high-pass and low-pass filters for precise speaker tuning.

Q4: What type of chassis does the KTP-445U have?

A4: It features a durable aluminum chassis for better heat dissipation.

Q5: Is the KTP-445U suitable for compact audio setups?

A5: Yes, its compact design allows easy integration into various car audio systems.


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