PS Audio PWD MkII vs W4S DAC2

+1 to what Vhiner said.

Do you have to take the top off of the perfect wave transport to upgrade the fuse? I don't see a little screw in the back like most of ps audio components have for the fuse.

how-to-open-the-perfect-wave-dac-case-to-change-fuse

You access the internal compartment by removing the bottom plate. The web site gives instructions.

Kng, for budgetary reasons I'm going to stick with my Squeezebox Touch until it goes belly-up. Then I'll go for the bridge or whatever updated version of it might be available. I expect the bridge will sound better than my SBT due to the extra digital lens.

Regarding break-in, I'm going to be zen and take my sweet time with it! I power on the system for about 5 hours a day, so it will take me 2-3 months to accomplish at that rate. The PWD was a stretch for me and I'll live with it for a long time, so if I can get improvements over the next 12 weeks without doing anything, that's like getting tweaks for free!

I will echo what a prior poster (Vhiner?) mentioned that even a 192 mp3 from Pandora now sounds damn near as good as redbook did before. That's stunning.