Infinity REF-704A Reference 4-Channel, 70w X 4 Amplifier

This amp is awesome. Not only does it look really cool, but the metal housing makes it extremely durable. The sound quality is fantastic, and the extra volume I was able to get with this amp exceeded my expectations. One thing I will say is that it was bigger than I expected. I have it mounted under my passenger seat, and it’s hidden fine, but it’s longer than most amps I’ve seen. So just make sure you’ve got the room for it!

Amazing amp. I bought this one to push my Kappa speakers. I wasn't looking to break the bank and I am happy with the performance from this unit. Clear clean sound I am getting. The amp is at 100% gain and my speakers have a clean sound to them. I am running it on HPF for my 4 speakers.Headunit: Alpine UTE-73BTAmp: Infinity REF-704A 1000 W Peak (400W RMS)Front Speakers: Infinity Kappa 60CSXRear speakers: Infinity Kappa 693.11IHardwire: Aproo USB C to 3.5mm Aux Audio Cable

I installed this amp in my 18 Mustang to drive the front and rear deck speakers 3 years ago and i have to say i really like it and it's been working great. Still thinking about adding a sub.

Seems to be a good amp. I checked for distortion with oscilloscope and it only showed up on my low frequencies when it gain was almost all the way up.Screws are easy to strip and seem cheap. Make sure you use the correct screw driver.

I never thought I'd get this kind of sound in my truck. Made my Memphis 6x9s sound so good I can't stop smiling! Even my very old sony 6-1/2s in the doors sound amazing now. Can't wait to install the infinity Kappa's I just ordered for the doors

Has RCA pre out, front in and rear in. xovers and gain for front and rear. Perfect for hooking up four speakers. comes with two transparent infinity stickers and extra fuses. Looks cooler than it does in pics.

Marine application and the second amp of three on the boat (58 foot express cruiser). Sounds as good as my Wet Sounds and JL audio amps.

The mounting hardware sucks.The amp is alright.