This is definitely an improvement to a stock head unit. It sure does pack a punch after tapping into the stock head unit power and ground, as described in the manual. Some maybe skeptical that splicing into the head unit power will be sufficient for an amplifier but I think it supplies plenty of power.
I replaced the stock speakers with JL audio C2 series and had the gain on this amplifier at nearly 20-25% and it was quite loud.
Great amp for tight spots!
I was replacing y 2002 WJ Grand Cherokee's Infinity radio, which meant I could not use the factory amp anymore. I was going to run the speakers off the Kenwood head unit- then I found this Universal Power-pack online. I patched it into the factory amp's wiring harness under the back seat, even re-used the factory power/ground wires. I ran two sets of 11.5 foot RCA cables for my signal from the Kenwood to the amp because I wanted a nice clean signal. I already had full range 6.5 speakers in the front doors (was not using the old stock dash speakers anymore). WOW it blows away the original amp, nice clear sound with enough bass to shake my seat (jazz/blues/rock) from the four 6.5's in the doors. I can't believe I didn't have to sacrifice cargo space or run huge wiring for it! Nobody even knows it's there- perfect!
Excellent value and quality
from Honolulu, HI
I researched small amplifiers for my jeep. I just wanted little more power to my aftermarket speakers. This is the amp if you want a boost to your factory or aftermarket radio.
Works great!! helps a weak aftermarket deck with s
from Tacoma, WA
Installed in 2006 Wrangler. Put amp underneath steering column dash panel. Fits like a glove. Deck is a marine grade Sony media center and speakers a Rockford Fosgate 5 1/4s front and rear.
from Schuylerville, NY
alpine has gone down hill this amp is a pain 2 install gets really hot idk what happen with alpine but thay are junk now