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HMa Plug-On Transmitter


Accepts microphone or line level signals

Selectable 5, 15, 48 volt phantom power

25 or 100 kHz tuning steps for up to 3072 selectable frequencies across a 76 MHz tuning range

Covers three standard frequency blocks

Selectable 50 or 100mW output power

Adjustable low frequency roll-off

Powered by two AA batteries

USB port for firmware updates

IR port for setup with IR enabled receivers

Solid machined aluminum housing

Digital Hybrid Wireless® Technology for compandor-free audio

Compatibility modes for use with analog receivers


This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15 and 48 volts, or can be turned off for use with dynamic microphones and line level signal sources.


The design includes a wide tuning range of up to 76 MHz, with tuning steps in increments of 100 kHz or 25 kHz for up to 3072 frequencies. The tuning range covers three standard 25.6 MHz Lectrosonics frequency blocks. Each of the standard blocks includes 256 different pilot tone frequencies for compatibility with all Digital Hybrid Wireless receivers.


DSP compatibility modes are also included to work with legacy Lectrosonics analog wireless microphone receivers and IFB receivers, as well as some receivers from other manufacturers, making it comfortable in a wide variety of applications from video production to theater, stage and house of worship. (Contact Sound First for details.)


For a complete wireless mic system select a Digital Hybrid transmitter, and a Digital Hybrid receiver.


Download the HMa Datasheet here.


Download the HMa Manual here.


Specify A1, or B1 frequency range.

The HMa with Pouch but without microphone is $1179.00 plus shipping. Ground shipping in the 48 states is $20.00 for one transmitter or $30.00 for two.

Purchase HMa Plug-On transmitter using PayPal. (PayPal Confirmed shipping address in 48 continental USA states only.)


Email me at Sales@AudioToolbox.US. I accept all major credit cards and eChecks through PayPal, or you may pay by Money Order sent to the address below.

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Last Edited 10/6/2017

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