[MrPorterhouse]

I really can't offer up much of a comparison, but I can atest to the quality and performance of the SVS. I've got the PB10-isd(older model) and it has served me extremely well in my 19x12x8 room, which is actually an open floor plan open to my entire 1st floor and to the upstairs as well. This means this sub has pulled its weight for an unbelievable amount of cubic volume and done well. The eD is a new guy and all I have to go on is what I read on internet boards, which has been positive. The same thing with Epik subs...very good internet testimonials. HSU subs have built the same solid reputation that SVS has, so you are really getting to very similar performance levels when you stay within the similar pricing.