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

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US $299.99

Approximately£225.91

Condition:

New

Breathe easy. Returns accepted.

Postage:

US $35.55 (approx £26.77) USPS Priority Mail®.

Located in: Fort Washington, Maryland, United States

Delivery:

Estimated between Thu, 7 Aug and Tue, 12 Aug to 94104

Returns:

30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.

Payments:

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Seller assumes all responsibility for this listing.

eBay item number:157143448078

Item specifics

Condition: New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...

Country/Region of Manufacture: China

About this product

Product Identifiers

Brand

Alpine

MPN

KTP-445U

UPC

0793276012395, 4958043510788, 0793276011916, 0093276011917, 4958043541782

eBay Product ID (ePID)

114789503

Product Key Features

RMS Power

45W

Channels

Model

KTP-445U

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

Item description from the seller

About this seller

Joined Oct 2015

Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable postage cost

4.7

Delivery time

5.0

Communication

5.0

Seller Feedback (130)

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Back brace as described (actually better than expected!). Terrific savings compared with buying a new brace. Quick shipping. Brace wrapped in bubble wrap. Most importantly for me, my painful back is relieved. A+ eBay seller! Recommend!
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Item was shipped promptly and as described. Good communication, value and packaging! After a brief charging, tested player with both a DVD and CD and seems to be working well. Hopefully this will continue to be in good working condition for a long time. 🙏🏼 Thank you!
SONY DVP-FX780 Portable CD/DVD Player 7 Inch screen -W/ Power Supply and Bag (#157123805909)
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seller was very kind! i had a little trouble figuring out how to use the camera/if i was setting it up correctly and they replied swiftly, and offered a return if anything was unsatisfactory. shipping time was fast.
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Product ratings and reviews

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4.8

122 product ratings

107 users rated this 5 out of 5 stars
9 users rated this 4 out of 5 stars
2 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 91 reviews

by m1be_65
30 May, 2023Most favourable 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 ... 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.
Verified purchase: YesCondition: Pre-owned
by fles.2014
13 Aug, 2016Most 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: YesCondition: Pre-ownedSold by: ckmekrut10hr8
by sixgun_d
02 Feb, 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 ... 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.
Verified purchase: YesCondition: Pre-ownedSold by: krim067
by killeth
12 Apr, 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.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: YesCondition: NewSold by: carsoundelectronics5
by senglert7nga
01 May, 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. 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.
Verified purchase: YesCondition: NewSold by: www-sonicelectronix-com

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

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Dimensions

Additional Product Features

Item description from the seller

Dose's Shops

100% positive Feedback•529 items sold

Detailed seller ratings

Seller Feedback (130)

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.

More to explore:

Dose's Shops

100% positive Feedback•529 items sold

Detailed seller ratings

Seller Feedback (130)