I've had mine for almost a year now and love it. I have 250 watts RMS running through it as well as 100 watts RMS running through the front 6.5's. When you put all that together, it sounds amazing. I wouldn't call it booming bass; it is just a 10". However, that isn't to say you can't hear it coming down the street. I attached a pic of mine and a link to jl's site
http://www.jlaudio.com/stealthbox/ptcruiser.html
hope this helps