A10-TX Digital Wireless Transmitter
Compact Digital Transmitter with Built-in Timecode-Enabled Recorder
The A10-TX transmitter is the heart of the A10 Digital Wireless System. And the core of the A10-TX transmitter is its low-noise, high-dynamic-range analog input. It accepting 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.
A timecode-enabled recorder is integrated into the A10-TX. It records timecode-stamped files to removable microSD cards. After recording the proprietary .mic file requires conversion to WAV file using Mic2Wav utility software for macOS and Windows.
- Low-noise, studio-grade balanced input for microphones and line level inputs with analogue limiter and 48 V phantom power
- Integrated digital recorder with ultra-accurate timecode generator
- Records to removable microSD cards
- Simultaneous wireless transmission and recording
- Remote controllable over Bluetooth® using the A10 Remote app for Android and iOS


"When using an A10 on a boom the first thing you notice is how transparent the sound is. There is no additional noise or transmitter or compander artefacts, just pure sound....The A10 has handled comfortably anything we have thrown at it." Ronan Hill, CAS - Game of Thrones
Built-In Audio Recorder
The A10-TX transmitter includes an integrated high-quality digital recorder. Sources connected to the A10-TX can be recorded to removable FAT32 formatted microSD cards. Files are recorded to Audio Ltd's proprietary, data-compressed ".mic" file format. These .mic files incorporate timecode from the A10-TX timecode generator.
Audio Ltd's Mac OS and Windows software utility Mic2Wav converts .mic files into monophonic, 24-bit, 48 kHz broadcast WAV files with its associated timecode.

A10-TX Transmitter Specifications
Features and specifications subject to change.
A10 Digital Wireless System Frequency Range | 470 - 694 MHz |
Transmitter Switching Bandwidth | A10-TX-A (470–548 MHz) A10-TX-B (518–608 MHz) A10-TX-C (594–694 MHz) A10-TX-D (534.2–629.8 MHz)* transmitters are tunable in 25 kHz steps *Note: A10-TX-D is intended for customers in Europe who want the flexibility of working in the United States but want to keep Ch 38, 39, 40 (606-630MHz) for UK, and some parts of Europe. |
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 |