Pro Co MC2 2 into 1 Microphone Combiner

The Pro Co Monoface MC-2 Mic Combiner passively combines the signals from two low-impedance microphone (or similar sources) into a single output. It is a handy "band-aid" for situations where the number of microphones required exceeds the number of mixer channels available, but separate equalization and level control for every microphone is not required. In a musical or recording situation, the MC-2 can combine mics from sources like dual bass drums, percussion "toys", stereo guitar amps, etc. Commercial sound uses include combining dual mics on a public speaker for redundancy and handling extra mics for audience participation at meetings. The MC-2's transformer isolation minimizes interference from SCR lighting dimmers, radio transmitters and 60Hz AC power wiring, retaining the advantages of common-mode noise rejection inherent in the use of balanced lines.

The MC-2 is fitted with standard 3-pin XLR-type connectors for INPUT 1 and 2 and OUTPUT, so hookup requires only standard microphone cables. One input is provided with a REV/POL switch to change its polarity. This is very useful for correcting acoustical or electrical phase cancellation problems such as poor mic placement and miswired cables. The use of the Pro Co MBT-2 transformer allows the MC-2 to provide a floating, low-impedance output with wide, flat frequency response, ultra-low distortion, and no ringing or overshoot to degrade transient response.

The MC-2's ruggedly constructed "Uni-box" enclosure is formed of extruded aluminum side channels and 16-gauge steel top, bottom and end plates and is designed to protect switches and connectors from accidental damage. The use of steel also provides excellent magnetic shielding for the transformer from 60Hz AC hum fields. Top-quality connectors and switches provide trouble-free service even in abusive situations such as remote broadcast and recording operations. The uniquely slotted side channels allow for stacking on top or strapping side-to-side of virtually any number of Pro Co Monoface devices using the Uni-box construction.