I agree with Sean in many ways. I've had both the Model 7 and 4a's running at the same time and made extensive comparisons. In a nut shell, they are cut from the same cloth, sounding very similar but I thought the Model 7 was a little forward compared to the Model 4. However, cost becomes a factor. A used pair of the stereo Model 4's can usually be had for the same amount as a used pair of Model 7's. I very much prefered the pair of Model 4's as I could passively bi-amp my Apogees with them. Much more punch and slam, with greater smoothness and soundstaging at a given volume level than the Model 7 mono blocks. The Model 7's would have to be priced well under $1000 (~$700) to become attractive against a pair of Model 4's (~$1000)IMHO. Actually, we should all have such problems. The Model 7 IS a really nice amp and I'm sure you would not be disappointed. Hope this helps.
