Reviving this thread....
I just did the big noise mod to an MP-1 v2 and while at it also swapped all other caps (did the ones as per noise mod: 10uF 450, 2x 33uf 250v (all Panasonic) 5x 33uf 50v (ELNA RFO series).
All others were swapped as follows:
- C3, C9, C10 with Orange Drop 715P 0.0068μF
- C4, C11 with Mica 100pF/1kV
- C5 with Orange Drop 715P 0.015μF
- C14 with WIMA 2700pF
- C15 with Orange Drop 715P 0.01μF
While the unit is almost dead quiet the tightness in the bass is completely gone. Anyone (MJMP) know what the reason could be?
I can get it tight with an OD or DS as clean boost up front but the bass response is overbearing without.
Since these were the only parts I swapped (to the same values as the originals) in addition to the normal noise mod I'm thinking maybe tinkering with the values (of the caps/resistor on the tube board) to get a tighter bass response......?? I'm talking the bass response within the tube stages, not the eq section
@MJMP: Any chance you can shed some light on those 10caps to be replaced for the Standard Gain SS Mod you mentioned here:
Well the SS mod can be orderd as a standard gain and as an increased gain board.But i usually sell the standard ones because in 90% of the cases these have enough gain unless you have very low output PU's.The SS mod is almost identical to the original except for about 10 caps that have a different value,mostly for tone and noise changes.It makes the tone a bit tighter and brings the noise down compared to the original board but retains the original sound.