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Alpine KTP-445A-open box

Plug and Play Head Unit Power Pack for Use w/ 2005-Up Alpine Head Units with a Black Power Harness

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Alpine KTP-445A-open box

Plug and Play Head Unit Power Pack for Use w/ 2005-Up Alpine Head Units with a Black Power Harness

$104.99

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  • Alpine Power Pack 4-Channel Class D for Select In-Dash Receivers
  • Increases the output of an Alpine headunit without having to install a full size amplifier and amp install kit
  • The fast and easy solution to higher power aftermarket sound
  • RMS Power Rating:
    • 4 ohms: 45 watts x 4 chan.
  • Total RMS power output: 180 watts
  • Gain switch is adjustable from high to low
  • Plug-and-play design for compatible Alpine headunits
  • Plugs directly into the wiring harness of the Alpine receiver
  • Fast and simple installation
  • 4 channel operation for four speakers
  • Minimum impedance of 4 ohms
  • Is not compatible with factory amplifiers
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20,000 Hz
  • Fuse Rating: 15A x 1
  • Dimensions: 7-13/16D x 2-9/16"W x 1-1/2"H
  • 1-year SonicElectronix.com warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Power Specifications - Full Range Channels

Peak Power @ 4 ohms
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Peak Power @ 2 ohms
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Peak Power @ 1 ohm
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Bridged Peak/Max Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the Peak/Max power created once an amplifier is bridged.

Power Specifications - Subwoofer Channel

Peak Power @ 4 ohm
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Peak Power @ 2 ohms
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Peak Power @ 1 ohm
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. However, some manufacture's do not provide an RMS figure and therefore one cannot be advertised.

Amplifier Specifications

Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

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Accessory Tools and Products

Accessories added

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Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

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Belva BBG3KT CCA 1/0 Gauge Big Three Kit

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XS Power BIG3XS 100% OFC 1/0 Gauge Big 3 Upgrade Kit

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270 Amp G Series Alternator for Select 1994-2012 GM Vehicles

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240 Amp S Series Alternator for Select 1992-2003 Dodge/Jeep Vehicles

240 Amp cutting edge 6 phase hairpin epoxy reinforced stator technology

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240 Amp L Series Alternator for Select 1963-1985 GM Vehicles

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250 Amp Alternator for Select 2003-2008 Ford/Lincoln/Mercury Vehicles

Cutting edge 6 phase hairpin stator technology with Twin internal rectifier plates with finned heat sink

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240 Amp S Series Alternator for Select 1999-2006 Jeep Vehicles

6 phase alternators use less horsepower per Kilowatt than conventional 3 phase alternators

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240 Amp S Series Alternator for 2011 Toyota Corolla

Ultra precision balanced rotor with oversized charge post ensure sturdy cable connections

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240 Amp S Series Alternator for 2006-2011 Honda Civic

15% more efficient than typical alternators

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370 Amp E Series Alternator with Black Finish for Select 1994 - 2003 GM

WOW 370 AMPS! Elite series offers the highest possible amperage

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320 Amp S Series Alternator for Custom and Racing Applications

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XS Power XP750 Special Edition

12-Volt Deep Cycle AGM Power Cell with 750 Max Amps

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Kinetik HC600-BLU

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8 Gauge Ring Terminals, 5/16" Opening

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PRO Series Classic Short GM Battery Post Shoc-Krome

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PRO Series Classic Long GM Battery Post w/ Shoc-Krome Plating

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200 Amp Relay Isolator (BIR200)

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120 Amp 4-Post Battery Isolator

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240 AMP 3-Post Battery Isolator

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World's Smallest AFS / Mini ANL Fuse Holder

Accepts 4 gauge or 8-gauge wire

Your Price $12.99

ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output

No-fail termination and current flow, it helps keep your system protected and running smoothly

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4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

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4 Pack of 100 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 100A Nickel Plated Fuses

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4 Pack of 150 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses

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2 Pack of 200 Amp Nickel-Plated ANL Fuse

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2 Pack of 300 Amp Nickel-Plated ANL Fuse

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Gauge Reducer, 4 Gauge Input to 8 Gauge Pin

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Gauge Reducer, 1/0 Gauge Input to 4 Gauge Pin

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Browse 6 questions and 14 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
For my Alpine stereo
Don J on Nov 28, 2015
I heard Great review on this product there for I wish to try it out and see for my self.
Reynold m on Oct 12, 2015
will this work with a mini cooper factory head unit ?
A shopper on Apr 2, 2015
Best Answer: Hello,

Jason is referring to the Alpine KTP-445U . Which is Universal, and intended to be used in Any vehicle. Please consult with your installer.

Alpine KTP-445U
http://www.sonicelectronix.com/item_60631_Alpine-KTP-445U.html
Reply · Report · Rick MStaff on Apr 2, 2015
· Add Answer · I Have This Question Too (0)
Does it work with the 149BT that I want the premium 149 from alpine?
Allen R on Oct 30, 2014
Best Answer: Absolutely. I have the older model (148bt) and it works great. It works with any Alpine deck made in 2005 or later I believe.
Reply · Report · Rob W on Nov 2, 2014
· Add Answer · I Have This Question Too (0)
Can anybody explain the gain switch? Just low and high settings?
Gary J on Aug 27, 2015
Best Answer: There are no adjustments on the amplifier. Alpine set the gain and other settings to work best with their head units.
Reply · Report · Daniel F on Aug 27, 2015
· Add Answer · I Have This Question Too (0)
KTP Current consumption ca 1000 mA ? Why asking for 15 A fuse
A shopper on Feb 20, 2015
Best Answer: Not sure, but it is connected to my 15A fuse for the radio and works great.
Reply · Report · Warren S on Feb 20, 2015
· Add Answer · I Have This Question Too (0)
Hi, first off is there adjustable high-pass crossover, and/ or is it adjustable for front and rear speakers separately? I like most people have smaller speakers in front with less response. If it does not, is there an alpine head unit that can adjust that like I want? Finally is this "power pack" like the discontinued ones, whereas it completely takes over the head unit watts and not combine the two amplifiers?
dan6777 on Nov 3, 2016
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

KTP-445A

Weight

2.40lbs

Internal SKU

LS-ktp445a-OB

Internal Product ID

91567

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine KTP-445A-open box