JJ depth/resonance question

[GregM]

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!

 

[John4021]

Inquiring minds like to know

 

[HilltopExplosion]

+2

 

[LP Freak]

Open it up and look for the pot. It should be pretty easy to spot.

 

[HilltopExplosion]

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?

 

[Dirty Dog]

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.

 

[John4021]

Thought we'd gotten a response from HQ by now.....


"HEY DAAAAAVE "

 

[RACKSYSTEMS]

No pot inside. There is a fixed resistor and cap, a 220 k and a .0047 Smaller resistor will be less bass.

 

[HilltopExplosion]

THANK YOU!

 

[BrentSP]

No pot inside. There is a fixed resistor and cap, a 220 k and a .0047 Smaller resistor will be less bass.

@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?

 

[RedPlated]

@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?

You’re correct. 220k on a 1meg audio is around 1 o clock.