Sensible, practical, and economical, the G228 preamplifier combines “barebones” features and Grommes~Precision know how to save you money without compromising quality or reliability! This preamplifier has 6 microphone/aux inputs and an, A-B, selectable auxiliary Hi-Z input. The G228 mixes 7 channels any combination between 6 mics and 1 Aux to 7 Aux inputs. This product has the capabilities of being mounted into a rack with kit RP-1UA.