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  Alpine KTP-445U Head Unit Power Pack 45W x 4 Car A
 
Enter the Crutchfield Research Centre & Video
Upgrade any car radio to 45 watts RMS X 4

101 people say
List Price: CAD $199.99

In Stock
Product Code: 500KTP445U


Overview Details Accessories
 
Alpine Authorized Online Dealer

More power, less hassle

Want a simple way to crank up the power of your receiver? Alpine's "Power Pack" amplifier increases your receiver's power output to 45 watts RMS by 4 channels. That's a big jump up from the 7-20 watts per channel typically put out by a car radio, and plenty of power to drive high-performance speakers or keep up with a big subwoofer amplifier. Best of all, this compact amplifier is so efficient you can often run it off the same circuit that powers your receiver. A universal plug lets you feed a signal via RCA outputs or speaker-level wiring.

The KTP-445U will work with just about any car stereo, but it's not a plug-and-play installation — you'll have to wire it into your system. If your car receiver's power circuit is protected by a 15-amp or larger fuse (check your fuse box or owner's manual), you can tap into it to power your KTP-445U. Otherwise, you'll have to run a power wire to the battery. Be sure to add a 15-amp inline fuse as close to the battery as possible.

You can install this compact amp behind most dashboards, but you'll need 4-channel patch cables to connect your car stereo to the amp's preamp inputs. You can also splice into your speaker wiring to get signal to the KTP-445U.

Important Note: The KTP-445U Power Pack won't work in a system with an active factory amplifier. You'll have to bypass the factory amp if you want to upgrade your power with the KTP-445U, and we don't recommend using this Alpine amp to replace a factory amp with more than 4 channels. Please contact an Advisor at 1-800-297-9469 to check compatibility if you have any questions.

 
Highlights:
   » compact Class D amplifier for factory and aftermarket receivers
   » universal plug lets you send signal from RCA outputs or speaker-level wiring
   » runs off same power circuit as receiver (must be 15-amp or more)
   » 4-channel amplifier
   » 45 watts RMS x 4 at 4 ohms (CEA-2006 compliant)
   » built-in high-pass crossover (selectable 60, 80, 120 Hz at 12 dB/octave)
   » selectable gain switch (high/low) and switchable 2- or 4-channel operation
   » fuse: 15A
   » dimensions: 7-7/8"W x 1-1/2"H x 2-9/16"D
   » warranty: 1 year

Alpine KTP-445U Power Pack Reviews

101 people say

 
Alpine KTP-445U Power Pack August-24-14
Reviewer: James from Hilton Head Island, SC  
It is an okay amp and does what it promises. You can definitely hear the power boost right away. So that's good and don't mistake me. But it leaves me a little wanting as it quickly reaches max gain without distortion. Then the sounds become tinny and you have to back off. I've had mine about 3 weeks. I want a full 75 RMS and this isn't enough for me. And it doesn't' generate more power at 2 ohms.  It's all right if you know you aren't going to want more, but I'm going to be ditching mine and getting a regular 75 watt per channel 4 channel AB amp for about a Franklin more.  It is supposed to fit up under behind your head unit or someplace else close, and it does, barely finds enough room there. It attaches easily to the cigarette lighter power and ground in the dash with a tap connector. That's the best part.  Also, I've had my two regular AB Alpine V12 amps go out on me recently. So I'm not too high on Alpine right now.


 
a little more juice August-12-14
Reviewer: Stan from michigan  
I have added aftermarket speakera to my doors and dash and they were sucking the juice right out of my cd player. i hooked this little guy up and and now it sounds better than ever and has power left over.


 
Awsume Amp July-08-14
Reviewer: Mack from LaGrange, IN  
Totally made my speakers come alive!


 
2011 gmc sierra extended cab June-30-14
Reviewer: Scott from Ky  
Awesome little amp , installed it with factory unit with some alpine  6-1/4.


 
That added punch June-24-14
Reviewer: RMJ from Fredericksburg,VA  
This amp gives my system that added punch that makes the tunes blast.


View All Customer Reviews

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Alpine KTP-445U Power Pack CAD $199.99