To monoblock or not to monoblock McIntosh MC275's

Monoblocks are cool in that you can place each amp right behind it’s own speaker, using long balanced interconnects and short speaker cables, the best way to hook things up, feel some people.

Thank you everyone. These are some good tips. However, someone offered me a really good price for the second one and apparently it was a MK V, not a MK IV, so I decided to sell it.

I strapped a pair of MC 275s onto some JBl 250 Pyramids thirty or so years ago. Didn't really help. 

FWIW, there is functionally zero difference between a series IV and a series V MC275.  Certainly not audible, but that's not a concern for you now anyway.

Increasing output by 3 dB (the smallest volume increase the human ear can normally discern) requires a doubling of power.  When bridged for mono, MC275 conservatively makes 150 W regardless of load, but as that translates to only 3 more dB, you likely won't get a big difference in output.

However, going dual monaural gets you essentially infinite channel separation at the amplification stage and more definition across frequency bandwidth.  That means better imaging and no two ways about it.

So, if you find a good condition series IV at a fair price, you can give the dual mono thing a shot to see if you like it.  Good luck & happy listening.

Nope