Designing a blend circuit.

[Brisance]

I am currently designing me a dual band distortion, and want a good way to blend the signals afterwards, since I do not want any channels leaking into other channels I need to buffer each channel, currently using op amp unity gain buffers(actually I could add some gain in them to pick up after the filter/clip stage), I was also thinking of using just discrete mosfets for it. Any other clever ideas to do it? Maybe use 2 of my oldschool soviet Ge transistors for mojo?(Although that will introduce loads of noise)

Ideas and thoughts welcome.

The WIP schematic, also note, that I do not need opamp biasing since I will run these off +-9V:


(Click for a larger view)

[JFace]

A standard inverting stage mixer has served me well in situations like this:

http://sound.westhost.com/project94a.htm

[antonis]

Maybe you could add an adjustable channel splitter..

[GibsonGM]

A standard inverting stage mixer has served me well in situations like this:

http://sound.westhost.com/project94a.htm

+1  Opamp mixers ("summers") work extremely well for this kind of purpose.