API 3124MV Discrete 4-Channel Mic/Line Pre w/ Stereo Mixer Features Classic API Circuit Design Uses API 2520 Op Amps Variable Output Level Control 3:1 Output Transformer Tap Selection Four XLR Mic Inputs Four 1/4″ Un-Balanced Inputs Front Panel Polarity Switch Front Panel 20 dB Pad Switch Front Panel Mic/Line Switch Front Panel 48V Power Switch [...]