Thanks for your input. After reading more, I had already decided to try the big ARC first, solo. The issues of biamping these is not as straightforward as I thought it would be.
I am excited about getting more of the old "goose bumps" again. I have to say though, reading all these posts...
I just purchased a pair of Quests which I'll take delivery on in 2 weeks. I have never owned ML speakers before, but have owned dipoles from Acoustat and Apogee before, so know a little about speaker placement. I am currently running JH Labs Mezzo Utopias off Manley Labs Neo Classic SE/PP 300B...