(Vibrates). Over any of the other gear... my external HD actually creates a lot of its own vibration. But if it's all isolated, then cool!
I was just thinking that if I was using one of my slightly microphonic tubes, then having my HD (sitting nearby) might be a problem. Why-else isolate?
So, I just got a Mac Mini and put 8GB of RAM in it. As soon as I get the little tool kit from OWC, I will put in my 40GB SSD. Running Amarra. Disabled Spotlight, Bluetooth and Dashboard.
Right now I am using a short, very scrawny USB cable. I'm pretty sure it's not USB 2 rated. As an experiment, I cut and pulled out the power pin from the computer end of the cable. The DAC works just fine without USB power. I might try to find a DIYer to do-it-himself-and-sell-me a USB cable with no power wire and with a sturdy, pure silver signal wire.
Then... I will get into power cables and conditioning.
Down the road... have the WA22 souped up or talk to Glenn about a project amp.