I'm interested in others' opinions on options for an all-in-one USB audio, DAC, headphone and small power amp combo. The most popular along these lines that seems to be decent is the Nuforce Icon-2. I'm basically in the market because I want to save space and simplify my setup. Here is what I...

I've had a Zero DAC for two years now and it's been great for my modest needs. Previously, I had it hooked up to my 20" first-gen Intel iMac and it worked like a charm. However, I've recently noticed that on my new 27" iMac, after a relatively short period of inactivity, the Zero DAC clicks off...