Hello group, first time posting here. Saw there was no responce to this old post so I thought I would bring it back to life. Just bought my eleven rack and am very excited. As I am waiting for it to be delivered. I am wondering if anyone has blended these two together somehow. I really like the hd500 because it allows me to run my mp3 player and play along with tunes. Does anyone have both units and have you tried using them together somehow? Thanks for any feedback.