Name: Alpine KTP-445A
Brand: Alpine
SKU: ktp445a
Price: 329.95 USD
Availability: LimitedAvailability
Rating: 5.0000 (10 reviews)

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Product videos

Product highlights

• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Learn more about the ktp445a

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Product Highlights

• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Description

Authorized dealer

KTP-445A

The KTP-445A Power Pack amplifies power output on select 2005 and newer Alpine head units, resulting in up to a 150 percent power increase over the original power from the head unit's built-in amplifier. Compact size lets the KTP-445A fit where most amplifiers won’t. The KTP-445A comes equipped with direct plug-in connectors for select 2005 and newer Alpine head units and it fits behind the dash of most vehicles. It's small and compact at only 7-7/16” x 1-1/2” x 2-1/2”. Its size and flexible wires make the Power Pack an easy choice to save space.

Product Details:

Class D 2 ohm Stable 4-Channel Amplifier
RMS Power Rating:

4 ohm: 45 watts x 4 channel
2 ohm: 45 watts x 4 channel

Total power output: 180 watts
High efficiency digital circuit design
Global modulation topology
Gain optimized for alpine head units
Plug and play installation with 2005-Up alpine head units
Frequency Response: 20 - 20000 Hz
Total Harmonic Distortion (THD): 1%
Signal to Noise Ratio: 84 dB
Fuse Rating: 15A
10 AWG gauge amplifier wiring kit is recommended for installation
Dimensions: 7-7/8" L x 2-9/16" W x 1-1/2" H
Authorized Internet Dealer
1-year Manufacturer's Warranty
MFR #: KTP-445A

Product history:

	Alpine KTP-445A (newest, current model)
	Alpine KTP-445 (previous model, replaced by Alpine KTP-445A)

Specifications & Details

Key Features

Amplifier Key Features

Compact Design

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

45 watts x 4 channel

RMS Power @ 2 ohms

45 watts x 4 channel

Amplifier Specifications

Series

Power Pack Series

Amplifier Class

Number of Channels

4-Channel

Total RMS Power Output

180 watts

Maximum Input Gauge Size

10 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

Not Bridgeable

Frequency Response

20 - 20000 Hz

THD at Rated RMS Power

Speaker Level Inputs

Preamp Outputs

Built-in Crossover

None

Signal-to-Noise Ratio

84 dB

Remote bass/level controller

Fuse Rating

15A x 1

Total Fuse Rating

Strappable

Amp Bluetooth Connectivity

Hi-Res Certified

What is in the box?

Paperwork

User manual
Quick start guide

WITB: Amplifiers

Amplifier
Mounting Brackets
Mounting screws (4)

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

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Overall rating distribution

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Show only Verified Purchases

By feature average rating

Durability		4.8
Value		4.8
Features		4.8
Design		4.8
Usability		5

Customer Reviews

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Easy Set-up

I bought this with the Alpine CDE-W235BT, The set-up was so simple. it doesnt weigh anything so you can put it anywere.

By Adam on August 19, 2014

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EASY INSTALL

Sonic provides all the right cables for your install...very easy....amp works great with no issues over the last month or so that I have owned it. Its hooked to a 149BT...sound quality is very good. one note it is bigger than it looks in all the pictures so make sure you look at the detailed measurements. It looks like a extra large laptop charger.

By john on November 5, 2014

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Nice

Not that loud,but very clear sound.
I listen 4or5 steps lower than just stock.GREAT FOR THE MONEY
BUY!

By Norman on April 24, 2014

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Great

Product arrived on time. Great amp, compact, clean Alpine power. Installed in the dash of a 2013 Jeep Wrangler with no problems.

By Tampajon on May 5, 2015

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Great Product

Quick easy installation. Just plug it in between your Alpine radio and the wiring harness that came with the radio and within minutes you have louder and in my case clearer sounding music.

By Mike on November 26, 2014

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very good amp, easy install

If you own an alpine head unit this is the amp for you. If you don't need a huge amount of power this will work, small enough to place in the dash, its just plug and play, and it doesn't pick up alt whine which is why I'm using it

By GWF82 on October 20, 2014

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Alpine KTP-445A

This is a great product, I love it and it was very easy install. Just plug and play very easy. My speakers sound so much better and I couldn't be happier. I would absolutely buy another and you should too.

By Anonymous on May 21, 2018 Checkmark Icon

Verified purchase

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Great sound

This was a great addition to my car, I was on the fence about getting it but now that I have it I wish I would have gotten it sooner. It is very easy to install the hardest part was finding a nice location to mount the unit. It did wonders for the sound quality in the car. I am very happy and would recommend this to everyone.

By Jose on February 18, 2016

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Nice little amp

So easy to connect, easy to mount and small in size but big in power. Really wakes up a system.

By Anonymous on August 22, 2019 Checkmark Icon

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Alpine

I like it....I thought it didn't work at first. ...but I had the defeat turned off on the stereo ....I didn't know I had to do that ...but I'm happy with the product...alpine has a lot of good products

By Kevin on December 11, 2015

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Add-ons

Stinger SK46101

10 AWG Amplifier Power & Signal Installation Kit

(5)

$38.99

List price $79.00

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Alpine KTP-445A

$329.95

Product Highlights

Description

KTP-445A

Product Details:

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Specifications & Details

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