3 Channel Recto Presence Mod....

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afu said:
I think I understand what you meant, now. I think they're comparing the same modes, not modern vs vintage. That's apples to oranges as you pointed out.

Even comparing same modes is apples to oranges because... ch2 modern keeps the negative feedback loop connected and the presence control functions in the traditional way as part of the power amp. But ch3 modern disconnects the negative feedback loop in the power amp and the presence control moves to the treble pot wiper.
 
http://wp.me/p4h97k-c8

My article about the Presence pot circuit. Some notes in regards to the modification are included.
 
A quick question here (please bear with me - I don't want to dig through all the posts ;) ) -

the basic channel 3 presence mod is the same one that the manual describes?
Fluff got his pot. straight from the Mesa guys?

Thanks!
 
EooN said:
A quick question here (please bear with me - I don't want to dig through all the posts ;) ) -

the basic channel 3 presence mod is the same one that the manual describes?
Fluff got his pot. straight from the Mesa guys?

Thanks!

Yes.
 

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