@blumartini I have been hoping to hear such a comparison, as well, and have this thread on my "watch" list. Like Mike, I also own BHK 300 mono's, and am contemplating an amp upgrade, with the Luxman M900u on my short list, so can I jump in for your assessment?
My room is 22.5' x 15' x 7.75' and I am driving some TAD CR-1's with the amps. I have a Lampizator Pacific DAC fed by an Antipodes DX II server for digital. My analog is a Technics SL-1200G with a Triplanar U12 arm and I alternate between a Benz LP-S MR and a VAS Boron Signature for cartridge. Phono preamp is an ARC Reference 2 SE, and line level preamp is a PS Audio BHK Signature.
I would love to hear your thoughts about the Luxman M900u in comparison to BHK 300 mono's in this system. Thanks!