McIntosh vs. Krell amp for Home Theater

I am looking at a McIntosh MC207 and a Krell Showcase Amplifier 7. I have MartinLogan Ascent i front speakers and a MartinLogan Cinema i center. I plan to purchase MartinLogan Script i for rear speakers. I am using a B&K Ref 50 preamp. I listen to music and watch movies almost equally. Does anyone have any exprience with these amps.