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Audio Ltd. - A10-TX-US Digital Wireless Transmitter

Audio Ltd. - A10-TX-US Digital Wireless Transmitter
Audio Ltd. - A10-TX-US Digital Wireless Transmitter Audio Ltd. - A10-TX-US Digital Wireless Transmitter
Product Code: A10-TX-US-AU, A10-TX-US-BU
Sales SKU: A10-TX-US

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The A10-TX-US transmitter is the heart of the A10 Digital Wireless Systems for the U.S. The core of the A10-TX-US transmitter is its low-noise, high-dynamic-range analog input. It accepts signals from low-level lavalier microphones to balanced line-level. The 3-pin LEMO input offers analogue limiters, 5V bias for lavalier microphones, as well as 12 and 48V phantom power for balanced microphones.


  • Low-noise, studio-grade balanced input for microphones and line level inputs with analogue limiter and 48V phantom power
  • All-digital RF modulation for full bandwidth, ultra-low distortion, and high dynamic range
  • Built-in Bluetooth to remotely control the A10-TX from an ANdroid or iOS device using the A10 Remote app
  • Powered by two AA (LR6) batteries


The wireless boom has become a requirement for many productions. The A10-TX-US is the first digital wireless transmitter that accepts either lavalier microphones or a phantom-powered balanced microphones. With the A10-TX-US mounted on the boom pole a user gains numerous advantages, including:

  • 1/4-wave antenna in free-space for maximum RF radiating efficiency
  • The flexibility to mount the transmitter at the top, bottom, or clipped to a boom operator's belt
  • A true balanced input with superior noise rejection and immunity to induced RF interference
  • Convenient Bluetooth control
  • Built-in 12 or 48V phantom with a full 10mA supply
  • One unit which accepts lavaliers, balanced microphones, and line-level camera hop signals



Frequency Range


Transmitter Switching Bandwidth

A10-TX-US-AU (470-548MHz)

A10-TX-US-BU (518-608MHz)

Transmitters are turnable in 25kHz steps

Modulation Mode

Audio Ltd proprietary digital RF modulation

Digital Audio Codec

Audio Ltd proprietary, high-performance digital encoding algorithm

Audio Frequency Response

20Hz - 20kHz

RF Output Power

10mW, 20mW, 50mW, selectable

Audio Gain Control

0-40dB in 10 steps, menu and remote control

Low Frequency Cut

Flat, 50Hz, 80Hz, 120Hz, 200Hz, user selectable

Input Connector

3 pin Lemo (series 00)

Input Type

Microphone or line level, balanced or unbalanced

Bias and Phantom Power

5V Bias, 12V or 48V phantom power

Menu and Controls

OLED menu display, 3 button navigation


2 x 1.5V LR6 AA size, lithium, NiMH, or alkaline


User settable Audio Ltd proprietary

Operating Temperature Range

-10 ºC to +55 ºC


0.25lb (104g)


3.27" x 2.52" x 0.71" (83mm x 64mm x 18mm)

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