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Alpine iLX-407 + Alpine KTA-450 Power Pack Amplifier thumbnail image
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5 star
96%
4 star
0%
3 star
4%
2 star
0%
1 star
0%



Durability
4.8
Value
4.7
Features
5
Design
5
Usability
5

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Customer Reviews

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Why wasn’t this type of amplifier developed years ago?

The following review is for KTA-450, which is a part of the bundle you are viewing.

This is a fantastic little amplifier, but it’s not flawless. On the plus side, this thing really does deliver amazing output for its size, and the convenience of strapping it on to the back of a mechanical-less Alpine head unit is ingenious. The only real downside is that you have to adjust the gains before you mount the radio, because once it is strapped to your face plate and screwed to the mounting brackets, the gains are no longer accessible.

By Merle on February 28, 2020 Checkmark Icon Verified purchase

55 found this helpful


Great product

The following review is for KTA-450, which is a part of the bundle you are viewing.

The small amp that fits behind the Alpine double din radio mounts right to the back of the radio for easy installation.

By Esteven on June 19, 2020 Checkmark Icon Verified purchase

52 found this helpful


Far Exceeded My Expectations

The following review is for KTA-450, which is a part of the bundle you are viewing.

I wanted a small to boost my system with smaller foot print amplifier, that I didn't have to run wires into my doors for the speakers. After my research I came across this amp you what sold me was the (DDP) DYNAMIC PEAK POWER. Let me tell you this amp gets loud and stays crystal clear. I have the KTA-450 hooked up to JL Audio C2-690tx's. this set up is phenomenal. If you're thinking about this amp DOIT you wont be disappointed much louder than I expected and will pierce your ears if you max out the highs lol.

By Thomas on July 24, 2021 Checkmark Icon Verified purchase

51 found this helpful


Great Product!

The following review is for iLX-407, which is a part of the bundle you are viewing.

I liked its overall design and function. This product is amazing.

By Fabian on June 24, 2023 Checkmark Icon Verified purchase
1999 Ford Expedition

48 found this helpful


Sounds incredible for a small size

The following review is for KTA-450, which is a part of the bundle you are viewing.

Install was a breeze and fast shipping, amp packs a nice punch.

By robert on May 3, 2020 Checkmark Icon Verified purchase

49 found this helpful


Absolutely amazing sound quality ????

The following review is for KTA-450, which is a part of the bundle you are viewing.

I am blown away by this amp, which is installed in pair with the Alpine ilx-650 headunit. So nice that it fits behind the radio in dash, wiring was a Breeze. Installed in a 2007.5 silverado 1500. Absolutely blown away.

By Brandon on December 2, 2023 Checkmark Icon Verified purchase

37 found this helpful


Nice radio

The following review is for iLX-407, which is a part of the bundle you are viewing.

Nice clean looking radio. Good features my only problem was the rca outputs kept going in and out sometimes wouldn’t come back on until I turned the truck on and back on again

By Quint on January 24, 2024 Checkmark Icon Verified purchase
2013 GMC Yukon

30 found this helpful


The following review is for iLX-407, which is a part of the bundle you are viewing.
By Luis Diego on March 4, 2024 Checkmark Icon Verified purchase
2005 Ford Mustang

25 found this helpful


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Travis on April 6, 2024 Checkmark Icon Verified purchase

24 found this helpful


The following review is for KTA-450, which is a part of the bundle you are viewing.
By William on May 11, 2024 Checkmark Icon Verified purchase

17 found this helpful


Alpine amp

The following review is for KTA-450, which is a part of the bundle you are viewing.

Awesome amp, easy to connect sounds great

By DAVID on July 7, 2024 Checkmark Icon Verified purchase

14 found this helpful


Tunes

The following review is for iLX-407, which is a part of the bundle you are viewing.

Easy of use for hearing my tunes as I cruse down the road.

By Taz on August 13, 2024 Checkmark Icon Verified purchase

12 found this helpful


Perfect compact screen.

The following review is for KTA-450, which is a part of the bundle you are viewing.

Wanted to put newer technology in my kids car so he had a back up camera, Bluetooth/handsfree, and a screen for map purposes. It performed perfect like every Alpine product I’ve had and was more than pleased with results and use. We built a system around it and loved the functionality of it all. Would highly recommend.

By MARK on January 31, 2025 Checkmark Icon Verified purchase

6 found this helpful


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Michael on November 11, 2024 Checkmark Icon Verified purchase

6 found this helpful


The following review is for iLX-407, which is a part of the bundle you are viewing.
By Mactavious on August 7, 2024

6 found this helpful


The following review is for iLX-407, which is a part of the bundle you are viewing.
By Ricky on June 15, 2024 Checkmark Icon Verified purchase

4 found this helpful


Missing parts

The following review is for iLX-407, which is a part of the bundle you are viewing.

Received my box from FedEx immediately opened it after taking pictures everything was in box except for stereo called right away to customer service at Sonic didn't seem like a lot of concern Hope they replace the stereo although the way I was treated I don't have much hope The box to begin with should have never left the warehouse it's got to be one of the cheapest boxes I've ever seen I am surprised everything didn't fall out hopefully Sonic makes this right I will update when this is all figured out

By warren on February 7, 2025 Checkmark Icon Verified purchase
2004 Ford F-350 Super Duty

1 found this helpful


Great value from Alpine!

The following review is for KTA-450, which is a part of the bundle you are viewing.

A beautiful and compact design…my vehicle does not have a lot of space for mounting amplifiers, and this amp fits perfectly. Alpine’s quality is unmatched. Thanks for a great price Sonic Electronicx.

By John on September 22, 2025 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Pete on September 19, 2025 Checkmark Icon Verified purchase


Amp gotta have one

The following review is for KTA-450, which is a part of the bundle you are viewing.

Packs in super well behind the alpine ilx670. Sounds great with the new HU and new speakers. My daughter is so excited to have great tunes in her car!
Thanks!

By Neil A on August 10, 2025 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Jesse on May 16, 2025 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Robin on March 30, 2025 Checkmark Icon Verified purchase


Powerful (small amp)

The following review is for KTA-450, which is a part of the bundle you are viewing.

I really love how small this amplifier is...don't even begin to think small =less power...NOT THE CASE!!!This little guy packs a powerful punch..Super convenient mounting on the back of my ILX W650...(also purchased from SONIC ELECTRONIX)
I initially set it up to power 4 -70w RMS door speakers (it performed pretty good)
Now I have it bridged..powering only 2 of the same speakers (way overkill)...but that's how I ride..
DEFINITELY going to get another to power the other 2 speakers ..
Please don't get the impression that this amplifier can't handle a 4 speaker setup..it definitely can!! Just do your best to get 40-60w RMS speakers...you'll be pleased..
I went with higher power speakers and bridged my amplifier because I like (REALLY LOUD)

By Robert on March 16, 2025 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By James on February 3, 2025 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By Ricky on October 21, 2024 Checkmark Icon Verified purchase


The following review is for KTA-450, which is a part of the bundle you are viewing.
By william on October 21, 2024 Checkmark Icon Verified purchase


So far a great amp

The following review is for KTA-450, which is a part of the bundle you are viewing.

I have this amp hooked up to an Alpine iLX-W670. On a 2018 Toyota Corolla with JBL GTO 6.5" component in the front and JBL GTO 6x9 in the back. Nothing over powering but it definitely brought my music to life.

By James on August 27, 2024 Checkmark Icon Verified purchase


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.