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HiFi Sound Connection Car Audio

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Alpine KTA-450 Car Audio 4 Channel 400W Amp Power Pack Class D Amplifier New

US $219.95

ApproximatelyC $304.72

or Best Offer

Condition:

New

Quantity:

More than 10 available74 sold

People want this. 79 people are watching this.

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Shipping:

Free Standard Shipping.

Located in: Nixa, Missouri, United States

Delivery:

Estimated between Tue, May 6 and Fri, May 9 to 43230

Ships today if you order in the next 12 hrs 45 mins

Returns:

30 days return. Seller pays for return shipping.

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eBay item number:402003751209

Last updated on May 01, 2025 17:05:57 EDTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitionsopens in a new window or tab

Channels: 4

RMS Power: 400 W

UPC: 793276242822

About this product

Product Identifiers

Brand

Alpine

MPN

KTA450

UPC

0793276242822

eBay Product ID (ePID)

21031154845

Item description from the seller

About this seller

Joined Feb 2001

We offer the lowest prices on car audio gear along with the best customer service on the internet. Please feel free to email us at sales@hifisoundconnection with any questions. We are here to help!!! ...

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Detailed seller ratings

Average for the last 12 months

Accurate description

4.9

Reasonable shipping cost

5.0

Shipping speed

5.0

Communication

4.9

Car AudioCar Audio AccessoriesHome TheaterHome Theater AccessoriesMarine AudioMobile VideoMusical InstrumentsPro AudioPro Lighting

Seller feedback (333,511)

This item (21)

All items (333,511)

r***1 (766)- Feedback left by buyer.
Past 6 months
Verified purchase
Fast Shipping
j***l (1330)- Feedback left by buyer.
More than a year ago
Verified purchase
Great amplifier A++++
i***c (390)- Feedback left by buyer.
More than a year ago
Verified purchase
Just what I needed. Thanks

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Product ratings and reviews

Learn more

4.4

13 product ratings

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

Good sound quality

Good value

Small form factor

Most relevant reviews

See all 9 reviews

by 12894rc10
Apr 03, 2020
I have not installed it yet....but it's the smallest, most powerful class D amp I have ever seen, and screws to the back of the head unit
This little amp screws to the back of almost any Alpine head unit. The head unit I bought had 50 watts MAX, and only 14 watts RMS. With the "piggyback" amp here bolts to the bac,k of the thin double din head unit, and fits in almost any double din head unit slot..behind the actual stereo. This little class D amp fires off 50 watts RMS....that's right....RMS. So make sure you buy high quality 65 to 100 watt RMS door speakers. I am hoping that this amp will free up the head unit power. The head unit will then power my dash speakers. Dash speakers are usually lower power and the base 14 watt per channel will power my two dash speakers and I can bridge the two rear channels to power my Infinity mid dash sub. (This is a relatively difficult unit to install because of all the harnesses...but it ... This little amp screws to the back of almost any Alpine head unit. The head unit I bought had 50 watts MAX, and only 14 watts RMS. With the "piggyback" amp here bolts to the bac,k of the thin double din head unit, and fits in almost any double din head unit slot..behind the actual stereo. This little class D amp fires off 50 watts RMS....that's right....RMS. So make sure you buy high quality 65 to 100 watt RMS door speakers. I am hoping that this amp will free up the head unit power. The head unit will then power my dash speakers. Dash speakers are usually lower power and the base 14 watt per channel will power my two dash speakers and I can bridge the two rear channels to power my Infinity mid dash sub. (This is a relatively difficult unit to install because of all the harnesses...but it only needs to be installed once). I also bought an 800 w rms @ 1ohm and a dual 12" 1000 watt rms (2 x 450 RMS). This Optima Turbo is gonna ROCK.
Verified purchase: YesCondition: NewSold by: shopmakonline
by trz4628-cqvwy9zb
Jan 02, 2020
The next level
For me it just doesn't get any better than Alpine. The best quality a person can buy . And the price was really reasonable it has taken my car and my enjoyment to the next level and beyond Thanks Alpine
Verified purchase: YesCondition: NewSold by: audiosavings
by diecastman79
Feb 15, 2021
Bang for the buck!
I originally bought the iLX-w650 headset to pair with one of these amps, if I felt the need for more power. After about a year, this newer KTA-450 came out as an improved version of the previous. Install was super easy, and it certainly was WELL worth it for the money. The sound is awesome, especially considering the size. I'm running four 6.5" coaxial speakers at 50x4 RMS, and am thoroughly enjoying it. I will probably add a subwoofer and use the RCA's that are still available for that amp, to round off the sound completely.I originally bought the iLX-w650 headset to pair with one of these amps, if I felt the need for more power. After about a year, this newer KTA-450 came out as an improved version of the previous. Install was super easy, and it certainly was WELL worth it for the money. The sound is awesome, especially considering the size. I'm running four 6.5" coaxial speakers at 50x4 RMS, and am thoroughly enjoying it. I will probably add a subwoofer and use the RCA's that are still available for that amp, to round off the sound completely.
Verified purchase: YesCondition: NewSold by: nancy--480
by percy072jason
Jun 19, 2022
Perfect for a stealth install!
Great compact little amp piggy backed on my Alpine iLX-W650 head unit. So far seems to have good power for it's size...set the gains to about 10 O'clock to keep the noise floor to a minimum.
Verified purchase: YesCondition: NewSold by: audiosavings
by abw3alton
Mar 10, 2020
Good things come in small packages
Great product! Came very quick too !
Verified purchase: YesCondition: NewSold by: audiosavings

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Alpine KTA-450 Car Audio 4 Channel 400W Amp Power Pack Class D Amplifier New

Shop with confidence

Item specifics

About this product

Product Identifiers

Item description from the seller

HiFi Sound Connection Car Audio

98.4% positive feedback•1.1M items sold

Detailed seller ratings

Popular categories from this store

Seller feedback (333,511)

Product ratings and reviews

Most relevant reviews

I have not installed it yet....but it's the smallest, most powerful class D amp I have ever seen, and screws to the back of the head unit

The next level

Bang for the buck!

Perfect for a stealth install!

Good things come in small packages

More to explore:

HiFi Sound Connection Car Audio

98.4% positive feedback•1.1M items sold

Detailed seller ratings

Popular categories from this store

Seller feedback (333,511)