I am running my laptop sequencer into my PA800 via USB. This gives me great sound, but my volume has to be controlled before it enters the KB because the master volume slider on the PA800 is the only means of controlling it, and that effects everything else.

It is too cumbersome to adjust volume of laptop on the fly with a mouse. It is not feasable to pre-adjust tracks on the sequence because of changing conditions,

Does anyone know of a simple USB in and out devise with a volume control. I have plenty of options if I chose not to use the PA800 engine, but it is so darned good,
Bernie