Adding the CI gave it a blacker background, improved soundstage and detail but what really did it was the benchmark (after the power supply upgrade). I use a shunyata diamond back with the power supply and also upgraded the umbilical, which all added to the power supply's increased performance. The tinny sound went away, but it was still thin, though not as thin as the wall wart. The Benchmark really makes it a satisfying source. I didn't want to add the benchmark w/o first doing the power supply upgrade. My thoughts were to get the SB as close to a transporter as I could, so I thought the power supply and dac would do it. I haven't heard the transporter but as I am now tremendously happy with the SB/PS/Dac combo. I am thinking of getting a 100ft ethernet cable to connect direct to computer (router) rather than wireless, as I have heard that will upgrade sound as well. Has anyone tried this with the Squeeze Box?