IVE BEEN TOLD TO VISIT THIS SITE AS U ALL KNOW WOT URE TALKING ABOUT HAHA.. i have a studio 22 that for some reason the volume keeps going up and down,.ive replaced the valves and it still does this. now i cant get any drive on it distortion i.e ,but the clean is perfect.also for some reason like my calibre50 w it makes a cat whining sound 5 seconds after i turn it off ... plz help! regards...