Review on 🔊 Pyle Hydra Marine Amplifier - Upgraded Elite Series 800 Watt 4 Channel Micro Amplifier - Waterproof, GAIN Control, RCA Stereo Input, 3.5mm Jack, MP3 & Volume Control (PLMRMP3B) by Krista Mitchell

I can't confirm what sound is playing as it arrived 3 days after I ordered and stop for a day spent by the heat. spent another 2 hours the next morning before throwing in the towel. There is no way of knowing if it is on (LED off). I've never had sound, so I'm assuming it just wasn't working since it was properly plugged in. also noted that it was a return because 1) the box was only sealed with tape, no shrink wrap 2) a waterproof bag was missing 3) some cables were missing zip ties. an empty plastic bag inside, I suspect it must have contained part of the wiring harness. All that doesn't say its 800 watts by any means, it only has a 10 amp fuse so it would be 140 watts MAX if it were 100% efficient (amps x max voltage 14.4) so that would be 35 watts at best RMS mean per channel, but again, that will be at 100% efficiency. Amplifiers typically have efficiencies closer to 75-80%. I'm guessing it's probably around 20 watts per channel (if it works), in my case it's ZERO watts per channel.