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Or in a more complex way if the gain channel uses an extra 12ax7 half you can tweak the electrolytic cathode bypass cap value on that 1/2 12ax7 for a treble boost.
The other alternative is to use a boost with Eq/eq in front of the amp.
PA Hire and Event Management
PA Hire and Event Management
PA Hire and Event Management
The point was cutting bass from the overdrive without having to do more tap dancing.
Unfortunately the kind of gigs I do require more range of sounds than May, Blackmore etc - and not at their volume! Haha
PA Hire and Event Management
Although it has to be said that I usually find *lack* of bass and treble, and excessive midrange, to be more of a problem than too much... I rarely run the bass below half on any amp. We may have very different tastes!
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
You can have an amp with dedicated clean and overdrive audio paths using separate gain stages for each, which then run through a common EQ section - it's still a two-channel amp. You can even have that if there are only one set of gain and volume controls as well, if the overdrive mode adds extra gain stages.
Or you can have an amp with completely separate control networks, which appears to be a two-channel amp, but which in fact only has one set of gain stages and switches the controls - most people would think of it as a two-channel amp, but in fact it's actually a single channel with two presets.
Or any combination in between...
That might sound like splitting hairs, and from a user point of view it doesn't matter much - but it can do if you're trying to change something in the voicing of one channel and not the other.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
The available controls are Gain, Volume and Tone on the clean channel then cascading into a Drive, Gain and Level control (with high cuts) for the overdrive section.
kt66 (currently biased for and running 6L6s) power section and a vintage 30 speaker.
PA Hire and Event Management
Likewise if it is based on a Dumble type design, you can lower the values of the coupling caps on the overdrive stage (Valve 2a and 2b) and this will only impact when the drive is engaged.
easily reversible too I suppose?
PA Hire and Event Management
PA Hire and Event Management