The top hit in a search for "Dave Rossum SSM2164" is a 2016 post from Dave Rossum's blog discussing the Rossum Electro-Music EVOLUTION Variable Character Filter module:
He also mentions having invented the SSM2040, so I'm sure he would've said if he'd come up with the 2164...The resonance (“Q”) of the original [E-mu Systems 1100 submodule] was not voltage controlled. I implemented voltage controlled Q using one cell of an SSM2164 VCA. Since the SSM2164 is based on my 1979 design of the SSM2010, this is an apt choice. (Sadly, the original 2164 is no longer produced, so a replica source was needed.)
Statistics: Posted by synchromesh — Sat Jan 11, 2025 6:56 pm