Some dumb ones. 1) RNC is supposed to be used with balanced ear only? I use a presonus firepod... is this balanced gear? Also what kind of cables to I need. Just standard 1/4" patch cables (like for effects) or something special. 2) This is a stereo compressor. But there is only one set of controls. I assume that if I use this for acoustic guitar (mic one) and voice (mic 2) that I would need to different "settings". Does this mean I really need two RNC's?