Using the items below I was able to get my HP's running off a Jolida 1501 I use in the bedroom system. It works, but the Jolida suffers from a slight hum. While this is not noticeable with speakers it is quite annoying with HP's.
Now to find a good quiet amp...
Hey, I like that combination of adapters. I've added them all to my Amazon wish list, in case I want do this in the future. Nice find!