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Digital wireless for today and tomorrow. The A10 Digital Wireless System is designed for the technical demands and requirements of today's RF-hostile, multi-channel productions.

A10-TX-AU Digital body-pack transmitter [470-548MHz] - US version

Compact Digital Wireless Transmitter with Phantom Powered Microphone Input
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, 5 volt bias for lavalier microphones, as well as 12 and 48 volt phantom power for balanced microphones.

Built for Wireless Boom
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.


  • Low-noise, studio-grade balanced input for microphones and line level inputs with analogue limiter and 48 V 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
  • 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 48 V phantom power with a full 10 mA supply,
  • One unit which accepts lavaliers, balanced microphones, and line-level camera hop signals.
  • Specifications

  • A10 U.S. Wireless System Frequency Range: 470-608 MHz
  • Transmitter Switching Bandwidth: A10-TX-AU (470-548 MHz), A10-TX-BU (518-608 MHz), transmitters are tunable in 25 kHz steps
  • Modulation Mode: Audio Ltd proprietary digital RF modulation
  • Digital Audio Codec: Audio Ltd proprietary, high-performance digital encoding algorithm
  • Audio Frequency Response: 20 Hz-20 kHz
  • RF Output Power: 10 mW, 20 mW, 50 mW, selectable
  • Audio Gain Control: 0-40 dB in 10 steps, menu and remote control
  • Low Frequency Cut: flat, 50 Hz, 80 Hz, 120 Hz, 200 Hz, user selectable
  • Input Connector: 3 pin Lemo (series 00)
  • Input Type: Microphone or line level, balanced or unbalanced
  • Bias and Phantom Power: 5 V Bias, 12 V or 48 V phantom power
  • Menu and Controls: OLED menu display, 3 button navigation
  • Powering: 2 x 1.5V LR6 AA size, lithium, NiMH, or alkaline
  • Privacy: User settable Audio Ltd proprietary
  • Operating Temperature Range: -10 °C to +55 °C
  • Weight and Dimensions: 104 g, 83 x 64 x 18 mm
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