There's no reason why it can't be done with the DAVE but yes, it will be expensive. Ted Smith, creator of the PS Audio DirectStream has done exactly this with his DACs and has reported wonderful results using multi-channel SACD recordings, an Oppo BDP-93 modified with the following board: http://www.jvbdigital.nl/jvb.asp?cur=1&level=sdi&page=title&title=924 Ordinarily, because of the encryption schemes employed, multi-channel SACD will output a digital signal only through the HDMI port. This add-on board will output a de-encrypted multichannel digital hi-def audio signal through RCA ports instead (up to 8 channels). This means you will need up 4 DAVEs and connect via the BNC ports. Of course, this would work for Blu-Ray movies also and this setup could represent one of the finest home theater setups in the world. The ideal scenario would be for Rob and Chord to create an 8-channel DAVE DAC.