Lectrosonics MCAM30 Data Sheet

MCA-M30

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TECHNICAL DATA

Barrel Adapter

Sold as a single unit. Photo for illustration purposes only.

This adapter is used to correct powering and noise is­sues that can occur when measurement microphones
are used with Lectrosonics UH and HM Series plug-on
transmitters. This adapter may be needed if you are
experiencing noise or distortion with measurement
microphones, particularly the Earthworks M30.

The design includes a trifilar common mode choke
wound on a ferrite bead to prevent RF from getting into
the microphone capsule.

XLR pins 2 and 3 are wired with reverse polarity at
the output to correct for asymmetrical current draw in
some P48 powered condenser microphones, including
older Neumann 100 Series, Rode NTG3 and others.

The adapter is inserted between the transmitter and
microphone as shown at right.

8 August 2018

581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com
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