I use the MC 901 mono amplifiers which allows me to biamp my speakers. The speakers are B&W and I use transparent cables and power cords and and an above average pre-amplifier and streamer dac. I don't use mcintosh pre-amplifier because I hate looking at the stupid green light all the time and I'm not sure the quality of the processors is as good as other manufacturers Plus I don't like the way it's configured for a home theatre bypass which turns off the TV screen when you're listening to stereo when using home theatre bypass which really sucks.
You really need to biamp and use quality interconnects to get the best out of any system. Especially B and W speakers. I thought about using a tube amp from VAC or CJ but I was concerned that the bass wouldn’t be what I wanted. Really wanted to biamp using tubes and solid state and McIntosh was the only company that could really do it given what their skill set is. So far it’s working out.
My only complaint as I mentioned in another thread is that the stock tubes they use are crap and I’m in the process of evaluating new tubes.
If you have issues with the amplifiers good luck getting them repaired very quickly.. McIntosh support of warranty centres is not where it needs to be and the length of Time you need before it’s fixed could be several months and very uncertain. I’m not sure why they use Best Buy to sell their products using Magnolia. That’s disappointing in my opinion and cheapens the brand.
Reliability was a big factor in my purchase decision and strong dealer support which is the case for me at least.