Name: Alpine KTA-450 Power Pack
Brand: Alpine
SKU: kta450
Price: 299.95 USD
Availability: InStock
Rating: 5.0000 (20 reviews)

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Alpine KTA-450 Power Pack Image 1 — Alpine KTA-450 Power Pack

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Alpine KTA-450 Power Pack Image 4 — Alpine KTA-450 Power Pack

Product videos

Product highlights

• 50 watts x 4 channel @ 4 ohm
• 45 watts x 4 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Learn more about the kta450

Discover more. Set your vehicle.

List price $360.00

-17%

$299.95

with warranty

Starting at $28/mo

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Quantity Qty

In Stock

Brand new

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Additional conditions

Open Box, Great $188.96

Open Box, Good $202.46

Popular alternative

NVX VADM4 v2 (VADM4v2) 500W RMS Class D V-Series Micro Full-Range 4-Channel Car/Marine/Powersports Amplifier

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Current Promotions (3 offers)

Get 10% Off an Alpine KTA-450 Power Pack with Purchase

Need louder, clearer music but don't have room for a big amplifier? The Alpine KTA-450 is the answer. It’s tiny enough to hide inside your dashboard, powerful enough to wake up all 4 of your door speakers, and built to mount directly to the back of select Alpine stereos.

Alpine iLX-407

https://images.sonicelectronix.com/images/4474917/main/kta450.jpg

10% off

Alpine iLX-407

$539 ⁹⁵

Alpine KTA-450 Power Pack

$299 ⁹⁵

Priced separately $839 ⁹⁰

Promo Savings of $30 ⁰⁰

Total price:

$809 ⁹⁰

Get 10% Off an Alpine KTA-450 Power Pack with Purchase

Alpine iLX-W670-M

10% off

Alpine iLX-W670-M

$349 ⁹⁵

Alpine KTA-450 Power Pack

$299 ⁹⁵

Priced separately $649 ⁹⁰

Promo Savings of $30 ⁰⁰

Total price:

$619 ⁹⁰

Get 10% Off an Alpine KTA-450 Power Pack with Purchase

Alpine ILX-W770M

10% off

Alpine ILX-W770M

$449 ⁹⁵

Alpine KTA-450 Power Pack

$299 ⁹⁵

Priced separately $749 ⁹⁰

Promo Savings of $30 ⁰⁰

Total price:

$719 ⁹⁰

Product Highlights

• 50 watts x 4 channel @ 4 ohm
• 45 watts x 4 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Description

Authorized dealer

Alpine KTA-450

Award-winning Powerstack Compatibility

The KTA-450 can mount behind select Alpine 2-DIN mech-less head units, like the iLX-W650, using the included bracket. The KTA-450’s recessed harness receptacle allows the wiring to fold between it and the head unit so both products fit in a standard 2-DIN space. This PowerStack design is a 2019 CES Innovation Awards winner and makes the duo one of the most powerful 2-DIN radios available.

Exclusive Amplifier Technology, Dynamic Peak Power (DPP)

The KTA-450 features Alpine’s exclusive Dynamic Peak Power (DPP). DPP intelligently adjusts the gain to adapt to musical needs. DPP prevents the KTA-450 from clipping by supplying up to double the power for sudden, dynamic sounds. DPP ensures music sounds the way it should at high volumes and boosts the KTA-450 to 400 watts DPP, doubling its power without increasing its size.

Product Details:

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

4 ohm: 50 watts x 4 channel
2 ohm: 45 watts x 4 channel

Total power output: 200 watts
Speaker-level (high-level) inputs
Signal sensing remote turn-on
Thermal and current protection
Features Dynamic Peak Power (DPP)
Low level input sensitivity: 0.152 - 2.80 volts
High level input sensitivity: 0.33 - 6.05 volts
Frequency Response: 15 - 50000 Hz
Selectable high-pass filters (60, 80, 120 Hz at 12 dB/octave)
Total Harmonic Distortion (THD): 1%
Signal to Noise Ratio: 82 dB
Fuse Rating: 20A
12 AWG gauge amplifier wiring kit is recommended for installation
Includes PowerStack bracket for mounting behind Alpine iLX receivers:

Alpine iLX receivers are not included and are sold separately
Dimensions: 7-1/8" L x 3-1/2" W x 1-7/16" H
Authorized Internet Dealer
1-year Manufacturer's Warranty
MFR #: KTA-450

Specifications & Details

Key Features

Amplifier Key Features

Compact Design
Speaker Level Inputs

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

50 watts x 4 channel

RMS Power @ 2 ohms

45 watts x 4 channel

Power Specifications - Full Range Channels

Peak Power @ 4 ohms

100 watts x 4 channel

Peak Power @ 2 ohms

100 watts x 4 channel

Amplifier Specifications

Series

Power Pack Series

Amplifier Class

Number of Channels

4-Channel

Total Peak Power Output

400 watts

Total RMS Power Output

200 watts

Maximum Input Gauge Size

12 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

Frequency Response

15 - 50000 Hz

THD at Rated RMS Power

Speaker Level Inputs

Yes

Preamp Outputs

Built-in Crossover

High-Pass (HP)

High-Pass Crossover Frequency

60 - 120 Hz

Signal-to-Noise Ratio

82 dB

Remote bass/level controller

Fuse Rating

20A x 1

Total Fuse Rating

Strappable

Amp Bluetooth Connectivity

Hi-Res Certified

Low-Level Input Sensitivity

0.152 - 2.80 volts

High-Level Input Sensitivity

0.33 - 6.05 volts

What is in the box?

Paperwork

User manual
Warranty/Registration card

WITB: Amplifiers

Amplifier
Mounting Brackets
Mounting screws (4)
Mounting screws (6)

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

Alpine KTA-450 Power Pack thumbnail image

Overall rating distribution

5 star		100%
4 star		0%
3 star		0%
2 star		0%
1 star		0%

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Show only Verified Purchases

By feature average rating

Durability		4.9
Value		5
Features		5
Design		5
Usability		5

Customer Photos & Videos

Customer Reviews

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

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

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Great product

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

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Far Exceeded My Expectations

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

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Sounds incredible for a small size

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

By robert on May 3, 2020 Checkmark Icon

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49 found this helpful

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Absolutely amazing sound quality ????

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

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37 found this helpful

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By Travis on April 6, 2024 Checkmark Icon

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24 found this helpful

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By William on May 11, 2024 Checkmark Icon

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17 found this helpful

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Alpine amp

Awesome amp, easy to connect sounds great

By DAVID on July 7, 2024 Checkmark Icon

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14 found this helpful

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Perfect compact screen.

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

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6 found this helpful

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By Michael on November 11, 2024 Checkmark Icon

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6 found this helpful

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See all 20 reviews

Add-ons

Universal Remote Bass Level Control Knob

Flush Mount & Universal via RCA. Works with any amp, controls your bass output

(8)

$7.99

List price $14.99

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Welcome to the Team!

Alpine KTA-450 Power Pack

$299.95

Current Promotions (3 offers)

Product Highlights

Description

Alpine KTA-450

Award-winning Powerstack Compatibility

Exclusive Amplifier Technology, Dynamic Peak Power (DPP)

Product Details:

Specifications & Details

Item Details

Product and How-to Videos

Customer Ratings & Reviews

Customer Photos & Videos

Customer Reviews

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