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The EWI MCB-201
mic combiner passively combines the
signals from two low-impedance microphones (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 equalization and level control for every
microphone is not required.
In a musical or recording situation, the
MCB-201 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 MCB-201's transformer isolation minimizes
interference from SCR lighting dimmers, radio transmitters and 60 Hz
AC power wiring while retaining the advantages of common-mode
rejection inherent in the use of balanced lines.
The MCB-201 is fitted with standard 3-pin XLR
connectors for inputs and outputs, so hookup requires only standard
mic 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 MCB-201 transformer allows it to
provide a floating, low- impedance output with wide, flat frequency
response and ultra low distortion.
NOTE: Phantom power (if required for your
microphones) must be
supplied by a suitable power supply, connected directly to the
microphones before the MCB-201 inputs. | 
