ART Dual Pre USB

This is the only pre-amp I've owned. I use it to record Children singing in choir settings in classrooms. My mobile studio is a low budget set-up run completely on battery power. My condenser microphones require phantom power and the 48 vt. preamps on the Zoom R8 are simply unusable in my experience. This is my solution and it does the trick. The ART Dual Pre USB powers two matched microphones via 9 volt battery. The gain knobs are a bit tricky in that there is a point at which the gain seems to have an exponential increase, but that causes no problems for my purposes. For mobile/field recording this is very useful piece of equipment.