McIntosh MC275V monos versus MC501 monos?


I currently have a McIntosh C2300 and one MC275V. I would like opinions around major differences to be expected between running two MC275V in mono configurations versus selling my current MC275V and getting a pair of MC501 monos. I will be using these with a pair of Klipsch Cornwalls III, so I am not considering the 501's just for power. Up to now I have had a strong preference for tube amplifiers, but never tried a McIntosh solid state amp. No local dealers for McIntosh so I need to be certain which way I want to go. I wont get a chance to test these in advance. Thanks!
dserran
Paired my Helicon 300 (monitors) with MC275s in mono and rolled all the KT88s and 12AX type tubes. Instead of 150 watts very close to 200 watts output.

Using jumpers from Analysis Plus (Big Silver with Barrier Spade on amp side) expect:

More bottom end with greater dynamics. Midrange and treble are much more alive as you hear much more of the music. Smoother and fuller sound with no strain during complex passages of music.

Hope this helps.

Pierre
Go to the McIntosh forum at audiokarma.org and do a search. A few guys have run 275's mono. I am using a MC275V with Cornwalls. Have used the MC352 as well. For my ears there is not a lot of difference between Mc tubes and Mc solid state. If money is not an issue buy the 501's. Another option to consider-keep the MC275 and buy a NOS MC352 or MC602 from Audio Classics at 1/3 to 1/2 of the price of 501's. That way you have both and can switch back and forth between tubes and solid state. Happy Hunting!
If you have a 275 isn't that 2 x 75 wpc? That is plenty of power for a pair of Cornwalls. Klipsch heritage speakers do not need very much power, especially if you are using tubes.