Whats the best amp to run Vienna acoustics speakers with Mc275 power amp...??

The MC275 is a great amp. The McIntosh C52, C22, C2600 or new C70 could be a great addition to your system. 

What’s your budget?

The new Herron Audio 360 preamp or Linear Tube Audio preamps are great as well.

Would the Herron Audio give the same or better mid range compared to MAc c2600.

I think the Herron would be a spectacular preamp and the tubes are auto biased. Keith makes awesome gear.