I just received and hooked up the Vali to my Bifrost Uber.
Holy smokes! This thing screams!!!!
I put small sorbothane feet on it instead of the included feet, so it floats on my desk. I can knock VERY hard on the wooden desk and not hear a thing through the Vali.
As far as ringing, I have to give the chassis a pretty hard tap to even hear the faintest of ringing with my PS500's. Using the volume knob in a normal manner doesn't elicit any ringing at all. Ringing is an absolute non issue.
Much, MUCH better with my Grado's than the LD1+. Absolutely fantastic!
Edited by fenderf4i - 3/3/14 at 5:39pm