Do you use this as an accessory to fatten your amps tone, or as a preamp along with a poweramp? I'm trying to get opinions on whether to get this with a QSC RMX1450 or not. I'm almost sure I'm gonna get it, but I just want to know your opinions. Also, if you have an RBI, what do you use it for, and with what, and how is your sound and how do you like it? Also, one more thing, with what kind of cable do you hook up a preamp to a poweramp?