I purchased a 3 ohm JL sub woofer on clearance. It holds 750 watts wrms at that ohm load. I need to know how to calculate the amount of watts a car amp puts out a 3 ohms, since car amps a usually rated at 4,2,and 1 ohm loads. I dont want to underpower the sub.
on a decent amp that is 2 ohm stable the power doubles going from 4 ohm to 2 ohm. just split the differance. if you have a amp that does 500 into 4 ohms and 1000 into 2 ohms it will do 750 into 3 ohms.
hmm not always true....what kind of amp are you useing???? and its gunna be kinda tricky wiring that to 3 ohms.....what is the VC config on the sub?...ps u cant hurt a sub by underpowering it.....