tonepad Sinamp Volume issue

[maiko]

so ive built the sansamp gt2 from tonepad and actually this is the 2nd one

This time im planning to use it as a preamp for my ggg TDA20x0

Question it is a very loud pedal i hardly past 8oclock on the volume and its already too loud.

any suggestion on how to lower the output.   it has a 5088 just before outpud.  can i adjust it there

any help would be appreciated.

https://imgv2-2-f.scribdassets.com/img/document/194292535/original/3894fea7ec/1487265476

[duck_arse]

try swapping the "vol" pot B100k with a log pot A100k. that might help shift the too loud point higher.

[maiko]

Yup ive tried this it actually helped alot and it placed my useable point to halfway but beyond
that its loud!! hahaha

[antonis]

Place a resistor in series with pot's upper lug..

[maiko]

you mean across lugs 1 and 2

so your suggesting i lower the pot value?    by half? so if 100k i solder also a 100k across 1 and 2?

[duck_arse]

not across, in-line with. try half the value of the pot, in series with the hot lug, so full volume will now be 33% lower.

really, you put a knob on that control, what difference does it make where you turn it to for comfortable listening levels?

[maiko]

ok i try to solder a 50k in series to lug 2

[antonis]

Hot lug!!! - Upper lug!!! - Lug No 3!!! - The one that has the higher voltage!!! 

Lug 2 goes to Op-Amp non-inerting input and the addition of 50k resistor will low down the GAIN of the NFB loop.. 
(and also the HPF cut-off frequency..)

[maiko]

  Okay hahahahaha