The ESP Guitar Company

So my vlaveking has been sounding a bit too trebly to the point of ear bleeding nastyness. Normally it's quite smooth, and I can have the treble controls pretty high, but have to reduce them to almost off levels the last few times.. Same for the presence control, has anyone experienced this kind of issue beofre, Im hoping its the phase inverter preamp gone bad... I first thought it was the new klotz Joe bonomassa cable giving me extre treble compared to the planet waves cables(they cut some frequencies apparently) but I have tried that through my bandit which has no peircing issues with the tone... I also have the other powertubes that were in it before but the current ones are fairly new and the amp doesent get used that much and I always warm it up, not too mention the controls are before the poweramp stage... Will try the phase invertor tube and then the powertubes... Any help appreciated... Fingers crossed... Makes me glad there are three 12ax7's and four 6l6gc's would have been really expensive just to replace the pre's in the 6505+112..