The reviews lead me to believe it would be very loud but if I turn it up the speakers start making a weird sound like they’re overextending. I put a controllable circuit breaker in and measured the amp draw. I’m only drawing 700 watts at 1 ohm. I have two duel 4 ohm 10 inch subs running at 1 ohm altogether. These are rated for 800rms and I can’t run frequencies higher than 60 hertz with dynamics frequencies like a regular song without hearing that cone sound. Sounds like it slamming into the top of the cone or something. At a stable tone they run fine 800+ but as soon as you play a song they make the sound well under 800. ~500. Sorta expecting more but they're still good for the price.