The RotoSIM is a great Leslie speaker simulation with two speeds and separate levels for the bass and tweeter. Output A is designed to sound slightly different than Output B. Output A is a little more transparent and truer sounding.Output B is deeper and thicker sounding. Definitely experiment with both outputs while the instrument is plugged into IN A (this also gives a nicer stereo sound spread when used in stereo).
This RotoSIM is very lightly used, and we'll ship it to you super fast and super safe! Feel free to give us a call with any questions you may have about it!