Since this is a free-for-all, I will throw my hat in the ring: I think the OP's warmth problem has nothing to do with his speakers. I think it's 50% the Krell and 50% the Benchmark. Changing either or both might solve the problem. Changing the speakers, I fear, will be a frustrating lesson in misdiagnosis.
Of course, I am guessing, like everyone else.
Bryon
Of course, I am guessing, like everyone else.
Bryon