SB Duet Sound Quality Improvement?


Recently set up the duet. 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. Image front to back and side to side became stable and well spaced, bass had the presence that I am accustomed to and the mids sounded very good. Only downside noticed so far are the highs. There is an etched grating quality that I want to tame and I feel that there is more to be had. Many seem to think the squeezebox is capable of replacing high end cd players given the right approach.
Current system:
sb receiver to Lite Dac Ah to B&K Reference 20 to Bryston 3bst to Gallo 3.1.
I'm thinking about a tubed dac or linear power supply to tame the highs and possibly round out the other areas. Which would be the best starting point?
Have just begun looking at tubed dac's and the paradisea seems to get very good reviews but I am open to suggestions. Price range will be less than $700.00 and used is fine.
Thanks
Steve
scoly1
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?
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Scoly1,
I would recommend the Benchmark DAc or the Bel Canto Dac3.
Both punch way above their price performance wise.
Drubin
First connection was rca out from sb to the prepro. Even my wife noticed that sq was considerably less than with the cd player (arcam). We then connected the optical out from sb to the Lite dac ah and dac's rca to the pre. Much improved.
Mr Bill
Thanks for the recommendations. Will do some checking.

Audioengnr
Is there a reclocker for a moderate price that would solve some of the issues?
I am not at the level that the sound needs to rival a $10000 setup but would like to head that direction.

Balancing a h/t with 2 channel is certainly a challenge. If what I need is a new pre that would be fine as long as it moves me in the right direction.
Thanks
Steve