I have seen this mixer device at the below link
**broken link removed**
Now, because I don't like spending any money is there a simple way I can do this in a homebrew fashion? Is it just a matter of wiring the pots to inputs, and then on to and output or is their more science that needs to brought to the party?
Preferably (like the one above) I don't want any power involved, this means also that I don't need it to do any pre-amplifying or fancy-business.
Any suggestions are appreciated,
jasp3r
Post Script: Any circuit diagrams would also be appreciated