Alpine KTP-445A Head Unit Power Pack Amplifier

The Alpine KTP-445A Power Pack is a compact upgrade amplifier designed to significantly boost the output of select 2005 and newer Alpine head units, delivering up to a 150 percent power increase for a more dynamic and responsive listening experience.

Engineered with Alpine's renowned sound quality, this 4-channel amplifier provides 45 watts RMS per channel and features an impressively low noise floor with a signal-to-noise ratio of 82 dB or better, ensuring a clean, clear signal path with minimal distortion, especially at higher frequencies.

Key Features

CEA-2006 Power Rating	45W x 4 @ 4Ω/2Ω
Brand	Alpine
Model Number	KTP-445A
Product Type	Power Pack Amplifier
Number of Channels	4
Compatibility	Select 2005 and newer Alpine head units
Dimensions (W x H x D)	18.9 cm x 3.8 cm x 6.4 cm
Signal-to-Noise Ratio (1 Watt)	82 dB or better
Total Harmonic Distortion (THD+N) @ 1W	<0.03%
Total Harmonic Distortion (THD+N) @ Rated Power	1%

Highlights

Add higher output and a more dynamic response with this easy-to-install Alpine head unit Power Pack upgrade.

Compatibility

This amplifier is compatible with select 2005 and newer Alpine head units via a direct plug-in connection. Please verify your specific head unit model for compatibility.

What's included

• Alpine KTP-445A Power Pack Amplifier
• Direct plug-in harness for compatible Alpine head units
• Mounting hardware
• Owner's manual

Frequently asked questions What head units is the KTP-445A compatible with? The KTP-445A is designed for select 2005 and newer Alpine head units, connecting directly via its integrated plug-in harness. How much power does the KTP-445A add? It provides up to a 150 percent power increase over the built-in amplifier of a compatible Alpine head unit, rated at 45 watts RMS x 4 channels. Where can the KTP-445A be installed in a vehicle? Its compact size (18.9 cm x 3.8 cm x 6.4 cm) allows it to fit behind the dash of most vehicles, saving space compared to traditional amplifiers. What is the sound quality like on this amplifier? It features a low noise floor with a signal-to-noise ratio of 82 dB or better and low distortion that decreases at higher frequencies for a clean, clear signal.