I have this amp running a set of MB Quart PVL268 components in my Ford Escape. The amp has plenty of power and the sound quality is great for a amp of this price. The quality is top notch as well. My only complaint is the glossy finish. Its a fingerprint magnet. I highly recommend this amp to anyone looking to power a set of good components or some subs. It does put out 400 watts rms x 1 @ 4ohms, & maybe a little more. I hooked it up to a Alpine Type R that was 600 watts rms & it pushed it every bit as good as my friends Hifonics 600 watt monoblock...

I'm using these as front speakers in my RX-8 with an MB Quart 4-channel amp. They handle the power very well and provide a excellent sound quality.

Got this hooked up to my Sony 12" Xplod sub bridged at 400 watts and it's awesome! It replaced am MTX TC4004 which is only 200 watts bridged. Major difference. I was able to raise the output level on my Maxxsonics MX3 all the way up and it has increased my db output. I don't pay attention to the voltage settings printed on equipment. They're pretty much for reference only so I always go by my ears when setting my levels. There's no distortion and it has increased my overall sound. I have an ONYX 4.80 on the way to use on my highs as well. My one complaint would be the plastic mounting feet but it's a good thing they use plastic because I mounted the amp to the back of my seat which is metal. The beautiful piano black paint gives it a sweet look. I've always been a fan of Maxxsonics equipment and have maintained the MB QUART reputation. Definitely recommend this amp!

I purchased 3 of these amplifiers and am quite pleased with the output they provide. the sound is strong, clean and warm. I am just a guy that likes good music, not anyone that is looking to beat down the neighbor's house with a trunk full of subs. You can't go wrong with these amps and the price is amazing for what you get.

But is says 400 watts rms "bridged"... For the 1st review are you using it bridged and does it really perform as 400 watt rms bridged amp for a sub?

To the other reviewer, this amp is 200 watts at 4 ohm and 400 watts at 2 ohms. Please get your facts correct before you write a review.

This one of those "you get what you pay for" deals. It's not a bad amp, but don't expect the world either. For it being 400 watts rms at 4 ohms, it seems like 200 if that. I have a kicker class D 400 watts at 2 ohms, and what a difference. Should have just saved the extra coin and got another one.