Garage
Shop

See all parts that fit your 2005 B4000

Alpine KTA-450 (Open Box, Good)

400W Peak (200W RMS) Class D Power Pack Series 4 Channel Car Amplifier

Alpine
Shop all Alpine
Product videos
highlight-star-icon

• 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 ls-kta450-u7

We apologize

This item has been discontinued

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


Alpine brand icon

Authorized dealer

Item Condition - Open Box, Good:

This product is used, but it will work like new and is in overall good condition. It will show signs of wear that can include scuffing, scratches, fingerprints, dents, and worn corners or installation marks. May be missing non-essential parts, accessories or original packaging.


KTA-450


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.


Compact Size for Hidden Installations

The KTA-450 measures just 7” W x 3.5” H x 1.25” D. For vehicles that do not have the space for a traditional amplifier, the KTA-450’s small size allows it to be tucked away in hidden areas such as in the glove box or behind the radio. It could even be used in a motorcycle’s saddlebag or on a boat.


Dynamic Peak Power

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)
  • Input sensitivity:
    • Low level: 0.152 - 2.80 volts
    • High level: 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
  • 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
D
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
1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
High-Pass (HP)
High-Pass Crossover Frequency
60 - 120 Hz
Signal-to-Noise Ratio
82 dB
Remote bass/level controller
No
Fuse Rating
20A x 1 
Total Fuse Rating
20
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
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

Item Details


Manufacturer:

Model Number:

LS-kta450-u7

Weight:

5.00lbs

Internal SKU:

ls-kta450-u7

Internal Product ID:

227488

Product and How-to Videos


Customer Ratings & Reviews


Alpine KTA-450 (Open Box, Good) thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


No picture

Kicker CompR DCWR102 (43DCWR102) Open Box

1600W Peak (800W RMS) Comp R Dual 10" (25cm) Subwoofers in a Vented Enclosure

(3)

$249.95

List price $399.95

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2017 Ram 3500

2014 Buick Encore

2005 Mazda B4000

1998 GMC C1500

2013 Dodge Ram C/V

1993 Mazda MX-3

2021 Ram 2500

2016 Ford Transit-250

2009 Ford Explorer

2001 BMW Z8

Vehicle
Store
Delete

2017 Can-Am Defender XT HD8

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.