I bought one 10" L3, made a box with internal volume of .9 and I'm impressed. This sub definately sounds more like a Comp VR 12". It hits a much wider range of frequencies than other 10" subs. It actually sounds pretty clean in a sealed box to. I can't really comment about the durability cause I only had it hooked up for a couple days, but this thing bangs! The sub is rated at 400 RMS but, only handles 350 RMS so watch how much you put on it. Buy it and you'll be happy!