Dave, you really need to talk to Mark O brian at Rogue Audio ,he could help with your tube noise,Also you didn`t say if you had any line conditioner on your system,I have a Rogue 66 that has the same noise you have and tried a Vanevers 85 line conditioner and the noise drop alot and these are stock tubes.The amp is a Rogue 88 with the new Pents lab kt 88 tubes ,they are just awesome,see if your dealer will let you use one of the line units to see if that helps. Albert was right as always , he a sharpe guy.he has been helpful to alot of people at this site, those tubes that Rogue sell are there NOS ,but you should talk to mark about it to get the scoop on what tubes are what. Greg
