[chris carter]

lpuma, I can't tell from your photos if your booth is supposed to be a U shape or an enclosed circle. If it's a U shape you will probably have better results if you point the mic into the U. From the pic (maybe I'm looking at it wrong) it looks like the singer poitns into the U and the mic points out of the U. This would be backwards for a cardioid mic. You want the singer pointing out and the mic pointing in. The trick (and this why the RF can only be so effective), is that you will have little success keeping the voice from getting outside the booth (voice = omnidirection and loud) and once it does the mic is aimed to puck up all of those reflections if it's pointing out of the 'U'. BUT it's very easy to keep the reflections from the room coming into the booth and into the mic (mic = directional; reflections= quiet) if the mic is pointing into the U. Make sense?