Ronnie,

Instead of spending $20k you could do:

take the 2- channel SPDIF signal from any source -> route it through Gefen DVI+SPDIF to HDMI converter into HDMI -> HDMI into HD621 -> Speakerlink on 861.

I am using this set up for apodizing my Sooloos signal since last March, it is night and day on the sound quality. Apodizing is really game changing good!

Total "upgrade" cost: �200.

Mirek