I may be wrong, but I thought the new IM-BEN's were around 92 dB sensitivity. Anyway, the Wright 3.5's should give you plenty of volume depending on your room size and listening preferences. I don't own any Wright gear, but I've heard them on a few occassions, wonderful stuff. I'm a SET/single driver convert myself about 2 years ago. I've never looked back. Some will say that the single driver and SET will not give you lower frequency satisfaction. Just remember, you can always use a sub to add that lower energy--that's what I did. Supposedly the IM-Ben, even with it's smaller Fostex 108 driver, gives a more solid foundation in the lower mids. There are smaller, fast subs like Terry's own Bailey, ACI's Force, and REL's offerings that mate quite well. Look over at 6moons for the latest review of the IM-Ben/Bailey combo--looks like another winner. No connection with Cain & Cain, just a happy Abby owner, and future I-Ben ES owner (hey!, A guy can dream can't he!)
Brad
Brad