Hallo Joachim (et al.) - ich fuckele gerade ein wenig rum, habe das in mein Lieblingsforum reingestellt und dachte, dass vielleicht Interesse an den Ideen besteht. Habe allerdings keinen Bock das nochmal zurückzuübersetzen - sorry . . .
Although the SLO cicuitry is very nice in the lead circuitry, and the clean circus also being pretty nice, IMO the crunch lacks meat and with the "depth" mod has too much bottom end (which is a problem in a shared eq amp IMO).
So I had some time to tweak the circuitry and here`s the result between the (almost) original circuitry (black) and the "improvements", which are nothing mysterical, but common stuff.
The R17 thing isn't a replacement, but a 1M in paralell to it - thats almost 680k then, which results almost in the X88R crunch circuitry, which is wayyyyyyyyy nicer than the stock SLO stuff ( IMO ).
The downside is, that the clean suffers from those mods - it lacks some bass now (when keeping the eq in the same positions) and has a tad too much gain and gets dirty pretty soon. I will try to make this stuff switchable, so I have the opportunity to select what I need . . .
An easier attempt would have been to decrease the value of C7 (from 22nF down to 1nF or 2n2 - I was talking to Peter about that), but since mine is still a PCB amp that was too hard to do . . .
Anyway, here`s the schem for those who might me interested
I will try to record some stuff this afternoon too.
Olaf