JJ depth/resonance question

  • Thread starter Thread starter GregM
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GregM

GregM

Member
Dave,

You had mentioned that our stock JJ's have a resonance/depth adjustment internally set to 1/4. I know you've done the mods to add a pot externally. Without having the external pot is depth something that's adjustable by the user?

Thanks!
 
Open it up and look for the pot. It should be pretty easy to spot.
 
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I have A BE with JBE mod, only pots I see are on the fx loop circuit board, 2 of em, same thing as JJ?
 
I doubt there is a pot inside, it is probably set by a resistor. If a 1M pot was used for the resonance then a quarter turn would be around 250k . So the resistor is the resonance circuit is probably around this value.
 
Thought we'd gotten a response from HQ by now.....


"HEY DAAAAAVE "
:lol: :LOL:
 
No pot inside. There is a fixed resistor and cap, a 220 k and a .0047 Smaller resistor will be less bass.
 
RACKSYSTEMS said:
No pot inside. There is a fixed resistor and cap, a 220 k and a .0047 Smaller resistor will be less bass.
Click to expand...
@RACKSYSTEMS if I were to try to match up the low end of both my BE100D (with frequency to the right) and BE100, where on the thump pot is close to 220k? I would think 9:00 but it’s not a linear pot, so to my ears it maybe around 1:00?
 
BrentSP said:
@RACKSYSTEMS if I were to try to match up the low end of both my BE100D (with frequency to the right) and BE100, where on the thump pot is close to 220k? I would think 9:00 but it’s not a linear pot, so to my ears it maybe around 1:00?
Click to expand...
You’re correct. 220k on a 1meg audio is around 1 o clock.
 
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