Dave Smith Instruments SYNTHESIZERS

> Hmmm, is there some sort of passive no-features 
very-small-space
> very-low-price mixer one could use for this sort of thing?
> 
> E.g. 3 stereo inputs -> 1 stereo output with no controls (maybe 
a single
> volume pot for each input or something).

I got this little mixer by Behringer called Eurorack Pro (although it 
might be a bit biger than you were thinking) for just over a 
hundred bucks. I couldn't believe it. It's 16 in and one stereo out 
with one send. Just volume, balance and send, and a mute, for 
each channel.