I was tempted to do some 6922 "tube rolling" when I 1st got my new Herron Pre but avoided doing so 1) can get expensive, time consuming & not always beneficial (ie: experiences from owning previous tube gears) 2) there are cheaper options for eg: Herbie's HAL-O's tube dampers
http://herbiesaudiolab.home.att.net/
At least the HAL-Os provided an improvement to my stock Sovteks, overall better focus & tightening of the LF.
http://herbiesaudiolab.home.att.net/
At least the HAL-Os provided an improvement to my stock Sovteks, overall better focus & tightening of the LF.