I needed a mic pre-amp that could run on 12vDC as part of a tour bus PA installation. I used this pre-amp paired with a T-bone GM5212 gooseneck mic. It works well for this purpose. S/N ratio and sound quality are good. It is a tidy little box and I was able to mount it discretely under the dashboard of the bus. Phantom power is delivered at 24v, so may not work for all condenser mics. It would be nice to have a Low Cut Filter, but other than that it is a well built and functional little box. My client is happy so that's the main thing!