I tried these two amps in the same system, but with my B&W 804S...significantly less a speaker than your SF. Anyway, both sounded great, but I opted for the 275. Later rolled some tubes and it got even better.
My speakers are smaller and 91 dB. Not sure about yours. Maybe your best bet is indeed Audio Classics.
BTW, I'm considering a SF Cremona M to replace my B&W. Have you tried those with your 252?
My speakers are smaller and 91 dB. Not sure about yours. Maybe your best bet is indeed Audio Classics.
BTW, I'm considering a SF Cremona M to replace my B&W. Have you tried those with your 252?