- Control via the A20-Remote app
- GainForward Architecture
- Full 10 Hz - 20 kHz audio bandwidth
- Built-in 32-bit float recording
PRODUCT DETAILS
Sound Devices A20 Mini Transmitter
Sound Devices’ first miniature transmitter incorporates state-of-the-art features such as full remote control via the A20-Remote app, GainForward Architecture, internal 32-bit float recording, a worldwide tuning range of 470 MHz – 1525 MHz, and more. The A20-Mini is fully compatible with Sound Devices/Audio Ltd existing A10 Digital Wireless System.
Key Features:
- Full remote control of the Mini via A20-Remote companion app and NexLink when paired with an A20-Nexus. Control frequency and RF power, turn the Mini on and off, start and stop recording, mute the microphone, format the media, view the status of all your Minis, and more.
- GainForward Architecture: set the Mini’s gain levels via trim control (with an 8-Series) or at the A10-RX (other mixers).
- Full 10 Hz – 20 kHz audio bandwidth; 100% digital RF modulation and transmission. Same excellent range and audio quality as the A10-TX.
- Worldwide tuning range of 470MHz – 1525MHz.
- Built-in 32-bit float, 48kHz recorder with 64 GB storage for over 80 hours of record time.
- Offload recorded WAV files via USB-C and optionally conform/convert with SD-Utility.
- Powering via AAA or NP-BX1 (Li-Ion) with built-in charging for NP-BX1 Li-Ion battery.
- Internal supercapacitor-powered timecode generator can be jammed via USB-C.
- Water-resistant with a rounded form factor.
Conceal...
The A20-Mini digital wireless transmitter combines legendary British audio quality with the best of American design. The sleek, rounded form fits perfectly into body contours and underneath tight clothing.
...and control.
Control the A20-Mini from your phone or tablet via Bluetooth 5.2 with companion app A20-Remote and NexLink when paired with an A20-Nexus. Set frequency and RF power, turn the Mini on and off, start and stop recording, mute the microphone, format the media, view the status of all your Minis, and more. The A20-Mini’s high-efficiency internal 2.4 GHz antenna ensures excellent Bluetooth range.
GainForward.
With the Mini’s GainForward Architecture, easily set the Mini’s gain, low-cut, and limiter directly on your 8-Series. This immediate, local control of gain allows quick adaptation to changing volume levels and saves time during production.
32-bit float recording.
The A20-Mini records in 32-bit float for an astounding >130 dB of dynamic range. This allows for audio gain decisions to be made after recording, with zero loss in headroom or noise performance.
Built-in 64 GB media.
No more SD card management – the ample-sized media stores more than 80 hours of continuous, uncompressed 32-bit float recording. Simply offload the recorded WAV files via the high-speed USB-C port to a computer.
Never lose time.
The Mini’s ultra-accurate 0.2 ppm internal timecode generator can be jammed via USB-C with negligible drift over a 24-hour period.
Flexible, worldwide operation.
With a built-in 470 MHz to 1525 MHz UHF tuning range, your Mini can go wherever work takes you.
Power away.
Use off-the-shelf rechargeable or AAA batteries – no adapter needed. 3 AAA batteries or a rechargeable Sony NP-BX1 give you the ultimate in powering flexibility. You can even recharge the NP-BX1 via the Mini’s USB-C.
Water-resistant.
With its extensive gasketing and waterproof connectors, the A20-Mini can easily withstand water and sweat.
Sound Devices A20 User GuideSpecifications
Frequency Range | 470-1525MHz Transmitters are tunable in 25 kHz steps Available frequencies are dependent on region |
---|---|
RF Output Power | Off Low - 2 mW Normal - 10 mW High - 20mW Max - 40mW |
Modulation Mode | Sound Devices proprietary digital RF modulation |
Antennas | UHF RF: SMA connector, removable 2.4 GHz built-in |
Audio Frequency Response | 10Hz - 20 kHz, +/- 1 dB re 1 kHz |
Audio Input Type | Lavalier Microphone via 3-pin LEMO Pin-1 ground Pin-2 5V bias Pin-3 audio/bias (8k ohm to 5V) |
Bias Power | 5V |
Input Impedance | 8k ohms |
Input Clipping Level | +5 dBu |
Dynamic Range | 130 dB min (A-weighted) |
Menu and Controls | Power & Pair button protected inside battery compartment A20-Remote, mobile device application of iOS, iPad and Android |
Remote Control | A20-Remote Android, iOS, and iPad app via Bluetooth 5.2 LE |
Recording Media | Internal 64 GB 10% over-provisioned for optimum performance |
Recording File Format | 32 Bit Float, 48 kHz, Monophonic Broadcast WAV (<4GB), RF64 WAV(>4 GB) Simultaneous Record and Transmit mode is not available on A20-Mini units sold or operated in the United States of America. |
Timecode (LTC) | Input via XL-TC-USBC-LEMO or XL-TC-USBC-BNC: 0.3 V – 3 V p-p (–17 dBu to +3 dBu), 20k ohm impedance Output via XL-TC-USBC-LEMO: 3 V p-p, 400 ohm impedance |
Timecode Cloak | 0.2 ppm accuracy Holds accurate clock for four hours while powered down with batteries inserted, holds for one hour without batteries via internal supercap Auto Jams timecode from LTC source via USB-C connector, or from optional PowerStation-8M |
Timecode Frame Rates | 23.98, 24, 25, 29.97 DF, 29.97 ND, 30 DF, 30 ND Frame rates are auto-detected from incoming source |
USB-C | Mass Storage (USB-C): USB 2.0 high speed for file transfer Powers A20-Mini |
Powering | 3x AAA batteries (Energizer Ultimate AAA Lithium primary batteries recommended), or Sony NP-BX1 rechargeable Li-Ion Built-in Li-Ion charger via USB-C (7.5 W or more needed) Sony NP-BX1 is rechargeable via optional PowerStation-8M. |
Environmental | Water Resistant Operating: -20° C to 60° C, 0 to 90% relative humidity (non-condensing) Storage: -40° C to 85° C |
Dimensions (H x W x D) | 75.8 mm x 48 mm x 19 mm 2.98 in x 1.88 in x 0.74 in |
Weight | 51 g (without batteries) 1.8 oz (without batteries) |
Battery Life
Estimated Battery Life, continuousRF Power & Record | Sony NP-BX1 | 3x AAA (Energizer Ultimate) |
---|---|---|
A20-Mini On, RF Power Of | 8:20 | 9:30 |
RF Off, Recording | 8:00 | 8:10 |
2 mW, Recording | 4:30 | 5:10 |
10 mW, Recording | 3:40 | 4:20 |
20 mW, Recording | 3:30 | 4:00 |
40 mW, Recording | 2:50 | 3:00 |
A20-Mini Off | 6 months | 6 months |
Charge Time PowerStation-8M | 2:30 | Not Supported |
Charge Time USB 500 mA (A20-Mini Off) | 2:40 | Not Supported |
RF Power & Record | Sony NP-BX1 | 3x AAA (Energizer Ultimate) |
---|---|---|
RF Off, Recording | 16:00 | 16:20 |
2 mW, Recording | 9:00 | 10:20 |
10 mW, Recording | 7:20 | 8:40 |
20 mW, Recording | 7:00 | 8:00 |
40 mW, Recording | 5:40 | 6:00 |
Estimates from the user guide.
- Control via the A20-Remote app
- GainForward Architecture
- Full 10 Hz - 20 kHz audio bandwidth
- Built-in 32-bit float recording