Compact format audio mixer with 4 mono input channels and a stereo line input. Each mono channel has a combo XLR/jack input with individually switchable mic/instrument impedance and +48V phantom power for the XLR. Input channels have High/Low EQ and Pan controls. The B/T pairing button enables wireless connection to a smart phone or tablet for playback. All CSD mixers feature a 16 program DSP effects section with digital reverbs, delays and modulation effects for vocals and instruments. Output is delivered on a pair of balanced XLR connectors and offers very low noise operation for high quality studio or live performances.