This subs are extremely good no kidding you can’t do better for the price I own a car audio custom install shop called maximum audio and was just trying out a different brand and holy crap as long as your not stupid and put this on a 2 ohm stable amp it 4 ohm amp wired parallel or straight and also don’t turn them up as soon as you get them they won’t blow like every speaker on the market you can’t just hook them up and slam them instantly when their brand new you have to break them in at the minimum 3 hours at low or med volume to get every thing warmed and broke in otherwise you will over heat the motor or voice cool and ruin them but after you break these guys in you won’t believe the output I went from 1 8" in my comp show car for bass competitions to 8 8" subs and I can hit around 155 decibels of I built the correct boxes to do these subs perfect but still it’s amazing what they can do highly recommend to anyone that know what to do!!