Hi,

There are occasions when you may wish to use a stereo effect and processing an entire mix is one of them.

As indicated you should configure aux send 1 to the left input of one effects unit and aux two to left in on the second.

If you think about it there are very few genuine stereo sound sources. Other than multiplayer set-ups (orchestras, choirs etc). The only one that immediatly springs to mind is a Hammond Leslie speaker.

Paul