I have yhe CI power supply for my sb3 and it was a most notable improvement. No more rf interferance from fm tuner, blacker background, wider, deeper soundstage, better retrieval of low level details - improvement all around. A must. (get the upgraded power umbilical also).
Any SB Owners Using Channel Islands Power Supply
Look Here to see what I am referring to. Since my server has become my main source for listening to music, I want to maximize its performance (sound familiar) – this looks like an interesting tweak. I’ve read good reviews about the various CI High Current Power Supplies – I’ve even read some highly positive reviews about the Duet/VDC-9.0 combination. That said, I have also read several threads on the Logitech site that are emphatic that an aftermarket power supply cannot improve the sound quality of any SB device (this coming from several senior members, including the Logitech top honcho). I know we’ve all thrown a meager $279 to the audio Gods to no avail, so this isn’t that big a deal. Then again…$279 will buy all my little cherubs new shoes. What say those in the know? I do prefer unabashed knowledge, but I will certainly welcome sarcasm, cynicism and mildly offensive humor.