I have not been able to compare the toslink and coax connection, yet. I have compared the stock switching PS to the linear PS on coax digital out. It was feeding a highly modded ART DI/O DAC direct into a modded TEAC A-L700P. The difference was about the same as I heard on the analog outs.
The highs were far more smooth with the linear supply. Midbass was richer, fuller. Low bass extended. All in all, I would suggest going with a linear power supply over the stock power supply if you are looking to get even better sound out of the SB2. A couple of folks compared one of the BOLDER Cable modded SB2s to a $4000.00 modded Denon 2900 over the weekend. The bottom line: The owner of the Denon has ordered a SB2 and wants me to mod it for him. ;-) http://www.audiocircle.com/circles/viewtopic.php?t=21029&postdays=0&postorder=asc&start=0 -- Wayne1 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles