The best person to ask this question on this site is @oldhvymec
I have a C2700 and MC275. I absolutely love the combination. It’s a fantastic combination for playing vinyl. Beautiful mid-range and just enough detail/sparkle at the top end. Also, the bass is really good. It’s not overpowering bass, but it feels like what you would experience in a live setting. The MC275 is a special amp. Upgrading the tubes (Mullards and Telefunkens work really well) will get even better details in the soundstage it produces.
I haven’t tried my C2700 with a SS amp and my speakers. I did hear it with a MC462 at the deal and still preferred the MC275 sound. To me the sound is richer and more comfortable.