Kr4: Right--it's the McCormack preamp, not the player. Thanks for the info on 'Logic7'--most of the reviewers seem to like it.
Eldartford: Do all of the surround algorithms (including Trifield, Logic7, etc.) work the way you describe, with out-of-phase signal going to the rear speakers? If not, perhaps some of them could be more consistently good with different recordings. I'm not really looking for something that is 'hit and miss' the way you describe matrix multichannel; if there aren't any solutions that work consistently well with a wide variety of discs, I may not want to go this route at all.
Eldartford: Do all of the surround algorithms (including Trifield, Logic7, etc.) work the way you describe, with out-of-phase signal going to the rear speakers? If not, perhaps some of them could be more consistently good with different recordings. I'm not really looking for something that is 'hit and miss' the way you describe matrix multichannel; if there aren't any solutions that work consistently well with a wide variety of discs, I may not want to go this route at all.