Update: My amp finally arrived, and I quickly found that only one of my pouches was big enough to fit the thing due to the height of the jack. However, about a half-foot of wire showed (due to where my belt sits) and I didn't like the sound coming out of my butt. However, I found out that because of how wide and bulky my sash is, it completely covers the amp, and I can probably hide the speaker on my front, held up with the supplied waistband. Next to my bulky pouches, you can't really tell. I'm... just that noodley, I guess! After a half kit-up it works pretty well, but I'll try and do a full shoot at some point this week/weekend to see if it really hides in pictures. I will have to punch a hole in my flightsuit and modify the headset, though - it goes all over the place inside my helmet, so I may be splicing wires sometime soon...
MMcFett - What material is your helmet made out of, and how big is the transducer? That might have something to do with the volume issue? I hope you figure out what the deal is with it...