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$234.00
Get it May 2 - 6
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This Item  Alpine KTP-445U 4-channel Power Pack Amplifier |  |  |  |  |  | |
| Price | -10% $234.00 Typical: $259.95 | $219.95 | $219.95 | $112.99 | $157.49 | $69.95 |
| Delivery | Get it May 2 - 6 | Get it May 3 - 6 | Get it May 3 - 6 | — | Get it May 1 - 2 | Get it as soon as Thursday, May 2 |
| Customer Ratings | ||||||
| Sold By | stereoware | Absolute Pro Music | Absolute Pro Music | WoofersEtc | Creative Audio | PRV Audio Group |
| number of channels | 4 | 4 | 4 | 4 | 4 | — |
| voltage | — | 14.4 volts | 14.4 volts | 6 volts | — | 12 volts |
| mounting type | Surface Mount | Surface Mount | Surface Mount | — | Surface Mount | Surface Mount |
Reviews with images
Easily hidden above the glove box of my 2005 Grand Cherokee
A car audio shop talked me into buying a new Kenwood DDX573BH head unit to replace the REC radio in my 2005 Jeep Grand Cherokee Limited. Unfortunately after two attempts, the technician couldn't get the stock amplifier to come on with the new head unit, even with two separate metra wiring harnesses. They offered to order a PAC wiring harness and was very confident that it would work, but said I'd loose all fader control and I wasn't willing to live with that. So during the following three day weekend I ran new speaker wires to all the speakers and bypassed the stock amplifier. I hooked the 4 door speakers up by wiring them in series and hooked them to the back channels. I then hooked the two dash speakers to the front channels. The dash speakers sound perfectly fine with the 22 watts rms provided by the Kenwood stereo, but the back speakers were totally under powered and probably only getting about 11 watts a piece based on the way they were wired up. I ordered the Alpine power pack hoping it would help out.I left the door speakers wired in series and hooked the Alpine KTP-445U to the 4 door speakers in 90 watt per channel bridge mode and it provide more than enough power to bring them back to life. The bass is back at low volumes now, just like it use to be and that is exactly what was missing. Sound quality wise, it's pretty dang good... but it could probably be a bit better. Maybe it is the settings on the Kenwood radio, or maybe it's the nature of the class D amplifier in the Alpine power pack.... or maybe it is the fact I'm running the door speakers as 4 ohms now instead of the stock 2 ohms setup.... but the sound is definitely not as clean and clear as the stock REC radio and stock amp were. The sound is not bad...it just isn't as clean sounding as it once was. Still, I'm happy with the radio in my Jeep now and the way it sounds.
Top reviews from other countries
GFB969
Einfach & wirkungsvoll
Reviewed in Germany on August 21, 2015
GFB969
Reviewed in Germany on August 21, 2015
Eben ein Verstärker xD Der seine Wirkung aber nicht verfehlt.
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Heigl Sebastian
Gute Soundqualität. Enfach einzubauen.
Reviewed in Germany on August 3, 2013