I own a Headroom Total Bithead USB headphone amp, and it's not working properly on Windows 7 Home Premium, (both 32 and 64 bit versions). I called headroom and they reported that there were similar problems using the amp when Windows Vista came out, but Microsoft subsequently updated USB drivers
and the issue was fixed. All indications are that the problem has not been fixed for Windows 7 yet, both from my experience and according to Headroom.
What happens is that every few seconds to a minute the audio will stutter during audio playback of any kind.
I can pinpoint this problem to the Windows 7 operating system because 1. I'm listening to the exact same device on my Macbook right now with perfect playback, but it does not work when I try it on my newly built PC and 2. I used to have Windows 7 installed on my iMac, and the problem would occur in Windows 7 with the device, but not when I was running OSX.
It's a pain not being able to listen to music on my desktop, so I'm hoping someone can either offer a solution, or Microsoft can provide some feedback on the issue. Windows 7 is an otherwise great operating system, which is why I decided to build a pc for it, and not get another mac when my iMac died just out of warranty...!!