The item you selected is unavailable, but we found something similar.

Picture 1 of 3

Stock photo

Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier - Picture 1 of 3

Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier

4.76160 product ratings

bran-mcad (22)
100% positive feedback

Price:

$180.00

Free shipping

Estimated delivery Mon, May 13 - Fri, May 17

Returns:

No returns, but backed by eBay Money back guaranteeeBay Money back guarantee.

Condition:

New

This is a new in-box unused Alpine Power pack KTP-445U. It provides 45 WATTS per channel. The input can be configured 1 of 2 ways, either through speaker wire (hi level) or through RCA (low level). Has gain dials for front and rear outputs, and also provides dip switches for high pass filter settings. I do not provide returns for this item if you end up not wanting it. So please make sure this is the item you want before you buy it.

About this product

Product Identifiers

Brand
Alpine
MPN
KTP-445U
UPC
0793276012395, 4958043510788, 0793276011916, 0093276011917, 4958043541782
Model
KTP-445U
eBay Product ID (ePID)
114789503

Product Key Features

RMS Power
45W
Channels
4

Dimensions

Width
7.875in.

Additional Product Features

RMS Power AT 2ohm
45W
Signal to Noise Ratio
82dB
Amplifier Type
Multi Channels
Bass Boost
Without Bass Boost
RMS Power AT 4ohm
90W

All listings for this product

item 1 Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier
$53.00
item 2 Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier
$59.00
Free shipping
item 3 Alpine KTP-445U Universal Power Pack Compact Car Amplifier, Used #U2
$68.44
Last oneFree shipping
item 4 Alpine KTP-445U 4 Channel 45W Rms x4 Power Pack Car Amplifier
$69.00
Last oneFree shipping
item 5 Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier -Black (DEVICE ONLY) #445
$69.96
Last oneFree shipping
item 6 Alpine KTP-445U Universal Power Pack Compact Car Amplifier, Light Use No Box #U4
$75.44
Free shipping
item 7 Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier - Black #MP9868
$79.98
Free shipping

See all 44

4.8

4.8 out of 5 stars based on 160 product ratings

160 product ratings

138 users rated this 5 out of 5 stars
14 users rated this 4 out of 5 stars
4 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
4 users rated this 1 out of 5 stars

Good sound quality

Good value

Small form factor

Most relevant reviews

See all 129 reviews

4 out of 5 stars
by m1be_65May 30, 2023
Top favorable review
Great for improving sound quality from factory radio
I was finally able to install this after a few months of having it. It does have better sound quality than the factory head unit. I also replaced the door speakers with quality ones to match the sound. I was able to set the gains and stuff it under my dash. I also purchased a harness side wire harness, and a stereo side wire harness to solder the inputs and outputs to. I also grounded the amp to the head unit and the chassis. My only beef with this unit is that the bass doesn't hit as hard as I would have liked from adding 180 watts to my stereo system. This is why i took away 1 star. This is not the seller's fault at all, just my pickiness. All in all, I'm happy with this as I'm not looking to make noise going down the road, just hear my music with better quality. There is no alternator whine, and it does what it's supposed to do. Read full review
Verified purchase: Yes | Condition: Pre-owned
3 out of 5 stars
by fles.2014Aug 12, 2016
Top critical review
alpine ktp-445u
This is a nice little amp. Not bad but perhaps too few watts for my liking. I connected it to the rca outputs on my new jvc head unit but it doesn't seem to have more usable power than the head unit. I am not an audio expert but I have been playing guitar in bands for about 40 years. Thanks
Verified purchase: Yes | Condition: Pre-owned
5 out of 5 stars
by sixgun_dFeb 02, 2016
Compact and good power
Very good price brand new, and very versatile. Small enough to hide inside your dash. These are a solid state unit so not much to go wrong with these so don't be afraid to purchase one of these used as well - long as it has both wire harnesses its supposed to come with. 45 watts RMS per channel may not seem like a big power number, but it is a world of difference on a factory radio (without external amp already) or even any aftermarket head unit, most of which you're probably lucky to get 10 watts RMS per channel with. Has no problem reproducing low tones for your door speakers, and even for a low price class D amp it can do the highs clearly as well. It's made to plug completely into all your factory speaker outputs and power/ground wires, has four-channel input so you don't lose your fader at the head unit. Another useful feature is its low pass crossover that can be set at several frequencies - useful for if you're still using factory door speakers, and/or have an added subwoofer system.Read full review
Verified purchase: Yes | Condition: Pre-owned
5 out of 5 stars
by killethApr 12, 2016
Perfect fit for my s197 2005 ford mustang coupe
Installed this little guy behind my new single DIN mechless pioneer deck. Since i have the shaker 500 system and am still using the shaker subs, i opted to use the Pioneer RCA's for the factory subs and use the line level inputs to feed the Alpine powering the 4 full range speakers. The pioneer head unit was loud enough to begin with but adding the Alpine made everything so much louder and clearer. The Alpine does get a bit warm when in use but its negligible. I have the gain set at 25% and there's no need to go higher. All in all i am happy with my setup and would use the amp again. Install was pretty easy and straightforward. When i swap the shaker subs i will reconnect the RCA jacks to the alpine to see if there is any improvement in sound.
Verified purchase: Yes | Condition: New
4 out of 5 stars
by senglert7ngaMay 01, 2022
Is better than the Alpine head units 18w RMS x 4. Bass is more controlled and hits harder.
It was a nice Plug and Play and way too much wiring to try and put somewhere. Had to put wireloom on all of it for protection against the sharp edges of Civic dash braces. For my 2002 Civic LX sedan it would have fit better behind my accessory plug panel if it was a little shorter. I cut some 1/4" rubber pieces to put on the right and left side to protect the wires coming out of the amp from those sharp edges of the braces. It will only fit with the label facing outward(or 180 inward) since that is the thinnest dimension or the accessory plug will hit when installing that panel.
Product Reviews Images
Verified purchase: Yes | Condition: New

Best Selling in Car Amplifiers

See all

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Car Amplifiers

Taramp's TS400X4 400W 4 Channel Car Amplifier
4.8 out of 5 stars based on 125 product ratings
$69.90 New
$65.00 Used
Taramps MD 5000.1 500W 1 Ohm Full Range Mono Car Amplifier
4.6 out of 5 stars based on 42 product ratings
$355.00 New
$280.00 Used
Taramps TS 800X4 800W RMS 4-Channel Car Amplifier
5.0 out of 5 stars based on 3 product ratings
$116.10 New
---- Used
Taramps Smart 3 Bass 3000W Class D Amplifier
4.6 out of 5 stars based on 16 product ratings
$257.04 New
$250.00 Used
Taramp's HD 3000 2 Ohms Class D Amplifier Module
4.9 out of 5 stars based on 60 product ratings
$189.00 New
$149.00 Used
Skar Audio RP-2000.1D 2000W Monoblock Car Amplifier
4.7 out of 5 stars based on 218 product ratings
$220.99 New
$150.00 Used
Taramp's The Big Boss 8 Bass 800W 1-Channel Car Audio Amplifier - 001958
No ratings or reviews yet
$689.00 New
---- Used

Save on Car Amplifiers

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Car Amplifiers

Taramp's TS400X4 400W 4 Channel Car Amplifier
$69.90
Trending at $74.00
Taramps HD3000-1 Ohms / Digital Amplifier 3000 Watts Rms Compact Fast Shipping
$185.00
Trending at $199.00
KICKER 46KISLOC2 Stereo Line-Output Converter Remote Turn On Wire 2 Channel New
$17.50
Trending at $19.98
KICKER CXA360.4 4 Channel Amplifier
$180.00
Trending at $200.95
Planet Audio PL24004 4 Channel Amplifier 2400W Max
$141.62
Trending at $144.07
Soundigital 800.4 - 4 Ohms/Digital Amplifier 800 Watts 4 Channel Ultra Compact
$188.00
Trending at $198.00

Picture 1 of 3

Alpine KTP-445U 4 Channel 45W Power Pack Car Amplifier

About this product

Product Identifiers

Product Key Features

Dimensions

Additional Product Features

All listings for this product

Ratings and Reviews

Most relevant reviews

Great for improving sound quality from factory radio

alpine ktp-445u

Compact and good power

Perfect fit for my s197 2005 ford mustang coupe

Is better than the Alpine head units 18w RMS x 4. Bass is more controlled and hits harder.

Best Selling in Car Amplifiers

Save on Car Amplifiers

You may also like