I have a 625. Most people can't or don't want to believe how much better this amp is than ANYTHING Jeff has ever built before. Yes the 8 & 9 amps will swing more current, but holly smokes is this thing way way great!With the right cabling and source components.....It is super transparent, quiet and has that elusive quality most solid state amps can't recreate. Images with mass ans precise outlines. His phase correctness must be spot on tho achieve the sort of imaging you hear from this amp. If you have inefficient speakers, you'll want his M725 or also yet to be released, M925 mono amps.I have a Rowland Criterion as my pre-amp.Silent Source cables (except for speaker)
