In fact really looking to design something modular so the splitting mixing could be added to any two circuits desired.
I have speculated jack ormans jfet splitter on the front end here:
http://www.muzique.com/lab/splitter.htm
and I found this for mixing:
http://www.aaroncake.net/circuits/mixer1.asp
Do these look like they will work in the way described?
Any other considerations to take into account?
should bypass the in/out buffers of the Ross circuit?
