You could try MSB (in Ca,near SF.) to see if they can modify/add a dig.coax out. This would allow the use of an out-board dac,Beyond that,good ics,good power cord on the pre,all help.Like everything about this hobby;the more you spend wisely;the better the sound.
Satellite Interconnects
I am interested in learning of improvements that can be made to a Hughes 18" satellite system for audio only. My coax cables and VCR are absolute basic. I use a MagicBlock to reduce/eliminate interference. My 2-channel system, however is high(er) end. Any and all suggestions appreciated.