OK, I just read the review Mark linked to. From what I had read, I didn't think that the 661 would even drive the M80. I must say I am encouraged. The 663 is supposed to be quite a bit heavier and some are assuming this means it has the same power supply is the 659.

I was wondering if I could go with the 663 for now and use it as a pre-amp later if I feel I need more power. From the review (and the tests published on S&V) it looks like this is a very reasonable option. Hmm... encouraging.

Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!