I recently replaced my Cary Cinema 11a processor with a Parasound JC-2 analog preamp and have been using the balanced connection from my XA5400ES to the JC-2. The sound is substantially improved over that with the Cary, but a discussion at Audiogon about impedances leads me to ask if it might be better to use single ended rather than balanced. I've had the Sony for years and have used SE, XLR, and HDMI connections, but not with the JC-2. The SE input impedance of the JC-2 is 30 kOhms; the XLR is 30 kOhms per leg. Any opinions re SE v XLR? Are both simultaneously active on the XA5400ES? If so, I could connect both and switch between the two.
Thorens TD 124, SME Series III arm with Ortofon SME 30 H cartridge into Parasound JC-3 phono stage
Ayre C-5xeMP, Oppo BDP-105, & Sony XA5400ES disc players
Parasound JC-2 preamp into Proceed HPA amps
KEF Reference 107/2 mains & 102 surrounds
Velodyne SMS-1 bass managers & a pair of HGS-15 subs