I'm totally with Donny...Stereo does make a huge difference to the sound quality of today's samples. I would NEVER EVER go back to a MONO setup unless I'm playing a Stadium or Arena gig.

Last year when I opened for Huey Lewis and then the Doobie brothers, we still ran STEREO to the board. What they did with the output is beyond me, but I sent both left and right to the board. I'm sure they summed the two signals somewhere, but listeners in the audience said everything was crystal clear.

Alex: I own the Fender SFX 200 keyboard amp. I love it and will not part with it. Excellent stereo imaging, great controls. I use it as a back up amp and for rehearsals.