Okay, so a Rickenbacker's Ric-O-Sound thing is a way that you can run the bass through two seperate amps at once, and allowing you to tweak one to sound one way, and the other to sound another way. Too bad you can't do that with a Jazz bass. Or can you? If you line out (or use the headphone jack) from one combo into another, you can do almost the same thing. It's not going to single the pickups like true Ric-O-Sound, but it does give you new sonic options. You can run into one amp and crank the standard EQ, and another to put distortion on it. I'm probably not the first to try and successfully accomplish this, but I think it's a cool trick.