Now of course it'll be different for everyone - but when I think of the RL-s, my FIRST thought is home theater since this driver has the capability to withold all of its supreme ( ) sound quality at very high output levels. I'm using a Behringer EP2500 amp that will output 2500 watts @ 4ohms bridged (or two channels of 1250 @ 2ohms), along with a Behringer crossover deck for the subwoofer line - for a combined price of less than $400 and let me tell you it sure does the trick damn well! Of course this driver is also suitable for car audio use by all means - but the reason why I personally would not opt to put one of these in my car is simply because of the requisite for massive power, lots of space, and the weight of the damn thing. I have no desire to go deaf in my car, and a couple 8's in my ride will have me grinning like an idiot no problem anyway! <{POST_SNAPBACK}>