Soundcraft GB2R 16-Channel MixerThe GB2R from Soundcraft offers 16 mono inputs to a stereo mix output, a pair of full feature stereo inputs, 2 group busses, and 6 auxiliary sends. Its a 19, rack mountable mixer intended for smaller scale installations including houses of worship, performance venues, portable PA systems, and broadcasting studios. The difference between the two GB2R models is the inputs and outputs. The GB2R also features a GB30 Mic Preamplifier and Equalizer that