This is the best HU I've have ever owned. I have it running 2 Audiobahn 6 1/2 off a Clarion 200 Amp and a Audiobahn 1000V off a MA Audio amp pushing 800 watts. Plus 2 Kicker 6x9 in the back. The sound quality is amazing. Using the built-in crossovers you can get the best sound from your speakers. The separate sub output really makes your subs sound 1000x better. This things has a ton of features and allows to do almost anything. Plus it has ipod controls. I've owned Clarion, Kenwood, and Sony HU before, and this hands down beats them all. An AMAZING buy for the price on this site!
I got this HU pushing Alpine Type-S's all around and two Diamond D3's 12" subs with a RF 1000db power amp. The sound quality is incredible for a budget HU. I was impressed with the fine tuning I could do with this HU. You can really decide what you want to exactly hear exactly how you want to hear it: rap, rock, country, even classical.
Another great head unit here that I bought back in 2006 still going strong today alot of people miss out on this head unit it is a classic unit now.