I seen the full video demo on the Ultimate today, impressive. I am liking the dual volume model they sell. However I am also liking what I am seeing from that Dr Z Airbrake. Money is not the issue but rather quailty, I have to study up on this a bit more. I also am simply going to get some opinions from the guys over at the Metro amp forum and see what they say since almost all of them have a amp similiar to this one. Below are two video demos of both
http://www.ultimateattenuator.com/video_guides.html