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Alpine KTP-445A

180W RMS Class D Power Pack Series 4 Channel Car Amplifier

Alpine
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• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Learn more about the ktp445a
Was $400.00 Details
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$329.95

 with warranty

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Current Promotions (1 offer)


Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

Alpine KTP-445A

25% off


Priced separately $409 93

Promo Savings of $20 00

Total price:

$389 93

Product Highlights


• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Description


Alpine brand icon

Authorized dealer


Alpine KTP-445A


Compact Amplifier

Compact size lets the KTP-445A fit where most amplifiers won’t. The KTP-445A comes equipped with direct plug-in connectors for select 2005 and newer Alpine head units and it fits behind the dash of most vehicles. It's small and compact at only 7-7/16" x 1-1/2" x 2-1/2". Its size and flexible wires make the Power Pack an easy choice to save space.


Best Signal-to-Noise Contender In Its Class

In order to ensure that Alpine sound quality is heard, we’ve created a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous interference. The end result: The Power Pack boasts 1 Watt Signal-to-Noise Ratio of 82dB or better.


Product Details:

  • Class D 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 45 watts x 4 channel
    • 2 ohm: 45 watts x 4 channel
  • Total power output: 180 watts
  • High efficiency digital circuit design
  • Global modulation topology
  • Gain optimized for alpine head units
  • Plug and play installation with 2005-Up alpine head units
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: 84 dB
  • Fuse Rating: 15A
  • 10 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 7-7/8" L x 2-9/16" W x 1-1/2" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: KTP-445A

Product history:

Alpine KTP-445A thumbnail
(newest, current model)
Alpine KTP-445 thumbnail
(previous model, replaced by Alpine KTP-445A)

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Specifications & Details


Key Features
Amplifier Key Features
Compact Design
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
45 watts x 4 channel
RMS Power @ 2 ohms
45 watts x 4 channel
Amplifier Specifications
Series
Power Pack Series
Amplifier Class
D
Number of Channels
4-Channel
Total RMS Power Output
180 watts
Maximum Input Gauge Size
10 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
1%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
None
Signal-to-Noise Ratio
84 dB
Remote bass/level controller
No
Fuse Rating
15A x 1 
Total Fuse Rating
15
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
What is in the box?
Paperwork
User manual
Quick start guide
WITB: Amplifiers
Amplifier
Mounting Brackets
Mounting screws (4)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

KTP-445A

Weight:

2.40lbs

Internal SKU:

ktp445a

Internal Product ID:

74719

Product and How-to Videos


Customer Ratings & Reviews



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



Durability
4.8
Value
4.8
Features
4.8
Design
4.8
Usability
5

Customer Reviews

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Easy Set-up

I bought this with the Alpine CDE-W235BT, The set-up was so simple. it doesnt weigh anything so you can put it anywere.

By Adam on August 19, 2014

58 found this helpful Helpful?


EASY INSTALL

Sonic provides all the right cables for your install...very easy....amp works great with no issues over the last month or so that I have owned it. Its hooked to a 149BT...sound quality is very good. one note it is bigger than it looks in all the pictures so make sure you look at the detailed measurements. It looks like a extra large laptop charger.

By john on November 5, 2014

56 found this helpful Helpful?


Nice

Not that loud,but very clear sound.
I listen 4or5 steps lower than just stock.GREAT FOR THE MONEY
BUY!

By Norman on April 24, 2014

54 found this helpful Helpful?


Great

Product arrived on time. Great amp, compact, clean Alpine power. Installed in the dash of a 2013 Jeep Wrangler with no problems.

By Tampajon on May 5, 2015

51 found this helpful Helpful?


Great Product

Quick easy installation. Just plug it in between your Alpine radio and the wiring harness that came with the radio and within minutes you have louder and in my case clearer sounding music.

By Mike on November 26, 2014

51 found this helpful Helpful?


very good amp, easy install

If you own an alpine head unit this is the amp for you. If you don't need a huge amount of power this will work, small enough to place in the dash, its just plug and play, and it doesn't pick up alt whine which is why I'm using it

By GWF82 on October 20, 2014

49 found this helpful Helpful?


Alpine KTP-445A

This is a great product, I love it and it was very easy install. Just plug and play very easy. My speakers sound so much better and I couldn't be happier. I would absolutely buy another and you should too.

By Anonymous on May 21, 2018 Checkmark Icon Verified purchase

39 found this helpful Helpful?


Great sound

This was a great addition to my car, I was on the fence about getting it but now that I have it I wish I would have gotten it sooner. It is very easy to install the hardest part was finding a nice location to mount the unit. It did wonders for the sound quality in the car. I am very happy and would recommend this to everyone.

By Jose on February 18, 2016

35 found this helpful Helpful?


Nice little amp

So easy to connect, easy to mount and small in size but big in power. Really wakes up a system.

By Anonymous on August 22, 2019 Checkmark Icon Verified purchase

33 found this helpful Helpful?


Alpine

I like it....I thought it didn't work at first. ...but I had the defeat turned off on the stereo ....I didn't know I had to do that ...but I'm happy with the product...alpine has a lot of good products

By Kevin on December 11, 2015

34 found this helpful Helpful?




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