I thought the Boss SD1 was derived from the Maxon/Ibanez TS circuit but twiddled to reduce the mid range hump. Yes? No?
I have read that they are different circuits but I have no details to confirm.
Cheers Stephan
my understanding here is the OD-1 came first, the TS copied it, and then the SD-1 copied that
following encouragement a couple of people from this forum, and an interest in Jake E Lee's tone, I discovered with Google that its fairly easy to mod an SD-1 into a OD-1. I did this on a pedal and it absolutely rocks.
these days i just use the following pedals for drive and i have little interest in experimenting further with that:
Juansolo Klone - works out with anything
DOD 250 - modded to original specs with Monte Allums specs, great with a strat
Thundertomate treble booster - good with a strat or PAFs
Boss OD-1 - use it for the "classic 80s" tone with humbuckers, makes me smile
I realise all of these work with different circuits.
I still like my modded Boss GE-7 and MI Audio Crunch box but rarely use them now. Really, I should sell or gift everything else I have in the overdrive pedal line.
Maybe I would like a good silicon fuzz or to try an Xotic EP booster.