i have owned the same amp for 2 years with no problems, how old is your amp? Also does it have both triode and tetrode switch?What tubes do you use. I use NOS fatboy tubes from the 60's.Tell what tubes you use so i never use them in this amp, thanks. Ps How often do you bias the tubes...mine hols bias for at least 3 months or longer....
Reliability issues with VTL amps/pre-amps
I have a VTL ST-85 which I use mostly, in the triode mode. The left channel tubes have blown 5 times in a two year period. I had repairs and the tube compliment replaced by VTL during this time. After all the shipping costs, VTL replaced the last set of tubes for free and all is fine for now, but I'm worried it will blow again. No one at VTL has ever told me why they keep blowing. Has anyone had similar experiences with VTL? Is this type of problem common with their products?