The MQS-51 is designed to provide a small, simple, and inexpensive microphone pre amplification for a variety of applications. The unit has both XLR and 1/4” Inputs and Outputs, and a single Gain control with a Clip indicator. Phantom powering is included for use with a condenser microphone. The 1/4”Output is specially designed for use as either a mono unbalanced output, or a stereo headphone output. The unit comes complete with a power adapter.