System very bright after adding Mcintosh amp

" Overkill amp?? " LOL.

I'll hazard a guess as to why the B&W's sound bright with the McIntosh amplification: Perhaps the B&W's have a varied impedance, and the due to the McIntosh's use of auto-formers, the dBW output of the McIntosh amps is higher into higher impedance at the B&W's higher frequency response, and the dBW output of the McIntosh amps are lower into the B&W's lower impedance at lower frequencies?

Unsound-- that's a good thought as the b&ws do have varried impedance, but unless I'm mistaken, I don't believe the mc7205 has the auto transformers. I don't think MAC introduced those until the mc205/207

The MC7205 does not have autoformers and neither do the MC205/207. They have only made one amp with more than two channels that uses autoformers and that the 3 Channel MC303. 5 Autoformers for one wouldn't fit and the amp would require a forklift to move. Jastone you only have a 4 or 8 selection to choose from and a input variation selection for each channel on the 7205. But I seriously doubt these settings are creating the issue you seem to be experiencing. Were you able to contact Mc or Audioclassics today?

Theo-- had a few unexpected things pop up at work Monday and today so didn't have much free time. Hoping to get in contact with them tomorrow...