(from a discussion thread).  UPDATE on the Musiland 01 USD (2012 edition).  I just got the usb converter that I settled on and as promised, here are my impressions: Setup was easy. I just installed the driver that came along with it and after waiting 10sec upon plugging it in it automaticly takes priority as primary sound driver in WIN7.  I also had to change my output setting in winamp. The only downside so far is that other sound sources (such as youtube) sometimes start without sound (and then I have to wait 10sec), It's as if the first...

I prefer the GR04 to my Visang GR02 and greatly prefer them to my Soundmagic PL50 (I don't like the PL50). This review is not going to get technical. The main purpose is to share my EQ settings which makes them sound more like my HD600 which is my reference headphone. In short: Great SQ for the money if you take 30minutes to EQ them. EQ settings: (from PlayerPro on Android OS). 0db 60hz -3,5db 230hz -5db 910hz +4,5db 3600hz +4,5db 14000hz