Originally went rca and found the s/q acceptable but not close to my cd player. Switched to digital optical and the sound opened up.Were both of these solutions from the digital out of the SB into an external DAC? When I first read your post, I assumed the initial RCA solution was using the SB's analog outputs.
I don't believe a Squeezebox can replace a high end CD player without expensive modifications, which frankly negate the inexpensive simplicity of the device, IMO.But not the convenience of a music server, which is why you'd get a SB in the first place. eh?