PhilNYC Wrote: > Can you get into some specifics as to why you designed the RCA output to > be capacitor-coupled and the BNC to be transformer coupled?
Sure. The transformer-coupled interface conforms to the IEC spec, and uses a 75ohm BNC. This is generally preferred for high-end gear because it limits the higher frequencies and provides complete galvanic isolation and good EMI isolation. However, it has two disadvantages: the lower bandwidth means slower transitions, therefore more jitter (although still very low). Also, BNC connectors are less common in home hifi so there is a convenience factor to consider there. The capacitor coupled RCA (with shield straight to ground) is practically universal on consumer gear because of its lower cost. I saw no reason not to include it, especially given its lower jitter characteristic. This raises the question of why not a capacitor coupled BNC output or something else - well, I'm not entirely convinced that BNC vs RCA makes a detectable difference for a signal of this bandwidth, but maybe it will give the modders something to do! :) -- seanadams ------------------------------------------------------------------------ seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=26332 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
