Pyle Hydra Marine 400W 4-Channel Amplifier - Waterproof with Dual MOSFET Power Supply - GAIN level Controls - RCA Input - LED Indicator - Compact Design for Boat/Vehicle Audio - PLMRA402

None of the cheap car audio amps were below 70$. Low and behold this little guy just popped out of no where. In the 20$ range... huh? Yea i thought so too. Got it, installed, set crossovers to my speakers ranges. Sounds bichin'.Other reviews say its not 400 watts... maybe? But i couldnt get my stereo to 27 of 65 w/out clipping. Just terrible. With the amps gains set to jist the 1st notch - Im able to get to 57 w/out clipping, and thats way loud. Just need some tweets now. Great product I believe (havent had more than a few days, time will tell) - but great product thus far. Cheap Quality w/ a "marine" stamp on it.. for boats i guess, works great in a car.

Hooked this up to replace my 20yr old marine audio 120w 2 channel amp. When I hooked it up worked fine until I started the engines. Loud whine came through the stereo as the suzuki 300 were running. Also whine was heard when using underwater lights. It was so bad could not keep radio on, had to shut it down. Hooked back up old amplifier works perfectly. This amp is a pyle of @#$#. I waited too long to hook it up or I would return it. Guess I'm stuck with it now....

Cost efficient way to help out with my sound system sounds clear works great for its smaller size, lower wattage amp but really help with higher cleaner sound then radio alone, seems to be holding up so far and doesn’t draw a lot of power

Strung little amp it works great in my boat I used it with 4 6 1/2 speaker and it sounds great

Excelente equipo

But this for my 20-ft boat. I got some great skar speakers for it. Wanted to save some money on the amplifier. It's louder than without an amplifier but not by much. The good side is the compact size fits right up under the dash. It's okay

I have a WM7000 down below driving 2 older Bose speakers in the cabin of my sailboat with two Polk audio waterproof atrium 4 under the dodger on deck. Like most single din marine stereos, The WM7000 does not have the power to adequately drive these speakers. Adding the Pyle AMP produced amazing results. The unit is solid and well made. The terminal strips are top quality. Installation was easy. Integration with the WM7000 sound control features using RCA jacks is excellent. This unit comes with a 20 amp fuse…As a sailor and anchoring overnight without an engine running I was concerned the amp would be a power hog. But with my setup running all 4 speakers fairly loud I am seeing only a 1-2 amp draw which is no problem for my house bank. Much has been made of the unit not truly being waterproof. I agree with this but suggest that mounting an amp, or really any electrical component, in an area exposed to constant wetness is stupid - put it out of the weather.

App worked fine for 2 days then one channel went out then the next day the other channel went out I ran on the last two channels for two more days now no channels work this is the most unreliable piece of crap I have ever bought and they didn't even give me the option to send this one in and then send me a new one that maybe from the factory it was defective they only offered to get my money back which just that is a one star