Are the SF3s PP?
Yes, push-pull. They sound great on my friends Wilson Watt Puppy 6's, but the De Capo I's just don't need that much tube power.
Does anyone in the NYC area own a pair of VTL TT25's? We could do a shootout at my apartment!!
My bet is that the TT25's will sound better on the De Capo I's. I've heard them and they are sure lovely sounding. I already own the MB 125's so I don't feel the need to move down the product line, though I am very impressed with the sheer beauty and resolution of the TT25's. Not as flexible as some of the other VTL amps, but for the MM De Capo I's, I really don't think it matters, especially since that head banger Chris drove his De Capo I's with a 4WPC SE amp!!!!
I'd ask Sound by Singer for a demo, but I've been labeled as a tire kicker there for coming in twice and not buying. To get the demo, though, I'd have to buy em first and I don't feel like doing that.