7. Balance control - Use this to adjust the relative amount of Effect Send (dry)
versus Effect Return (wet) signal being routed to the Model 3500 speaker
outputs. At the center-detented "0"; position, equal amounts of Send and Return
signal are routed.
At its fully counterclockwise ("Send"
position, no signal from
a connected effects processor(s) is added to the main output. At its fully clockwise
("Return"

position, the only signal you hear is that coming from a connected
outboard effects processor(s). If your outboard effects processor has an
adjustable wet/dry control, we recommend that you set the Balance knob to its
fully clockwise ("Return"

position and use the effects processor's wet/dry control
to adjust the relative mix. Alternatively, you can set the effects processor to
output fully "wet"; signal and use the Model 3500 Balance knob to adjust the
relative mix of dry vs. wet signal