You should be fine with MC75. Keep in mind both SF and MAC tubes have a very warm signature, which is fine if you enjoy this.
Alternatively you can get two MC275 and bridge them as monos. Doubling power will add another 3db to your peak volume. Of course MC901 would be the best of both worlds, SS for low end and tubes for midrange and tweeter.
Luxman L-590AXII is a Class A integrated that will make your SF less romantic and more detailed and accurate. It's one of the best integrated amps on the market now.
But I recommend you stick with tubes all around. You can't beat the tube sound once you're used to it. Look into audio research, 160S, will be more detailed and accurate than MAC and still keep beautiful tube sound with plenty of power.
You should definitely experiment. Also try a moderately powered SET if you can afford it. SETs sound beguiling with SF.
Alternatively you can get two MC275 and bridge them as monos. Doubling power will add another 3db to your peak volume. Of course MC901 would be the best of both worlds, SS for low end and tubes for midrange and tweeter.
Luxman L-590AXII is a Class A integrated that will make your SF less romantic and more detailed and accurate. It's one of the best integrated amps on the market now.
But I recommend you stick with tubes all around. You can't beat the tube sound once you're used to it. Look into audio research, 160S, will be more detailed and accurate than MAC and still keep beautiful tube sound with plenty of power.
You should definitely experiment. Also try a moderately powered SET if you can afford it. SETs sound beguiling with SF.