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Originally Posted by Wally
YOu might want to repalce the ceramic treble tone caps in with some silver micas.....this does smooth out the high end, ime....much more musical.
I also have to ask....at what setting are you putting your tone controsl when using this OD pedal. I ask because tone controls are gain controls. You are hitting the preamp with an increased gain situation....and this affects what goes on in that preamp relative to the gain in those tone stacks. IN other word, I would think about this aspect in addition to considering any mods to the amp. There may need to be some balancing act between the OD gain and the channel controls??
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A few weeks ago I finally took my DR to the local tube amp guru ( Kye Kennedy ). That is exactly what he did with the bright cap. Sounds great! Highs are now more refined. And he also modded the Normal Channel. I now used an a/b switch with 2 discrete effects chains. Here is his description of exactly what he did.
"The Normal channel treble,middle and bass caps were changed,as well as the slope resistor was changed to 56k. You have 1k 5watt screen grid resistors which are more reliable and increase tube life without affecting tone. The Reverb channel is stock with a dipped mica bright cap and flameproof 1% plate load resistors."