A20-Mini Specifications

Click on each group to expand. Specifications are subject to change without prior notice.

Frequency Range
  • 470 to 694 MHz
  • Transmitters are tunable in 25 kHz steps
  • Available frequencies are dependent on region
RF Output Power
  • Off, Low – 2 mW, Normal – 10 mW, High – 20 mW, Max – 40 mW, selectable 
Modulation Mode
  • Sound Devices proprietary digital RF modulation 
Antennas 
  • UHF RF: SMA connector, removable 
  • 2.4 GHz built-in 
Audio Frequency Response
  • 10 Hz – 20 kHz, +/- 1 dB re 1 kHz 
Audio Input Type 
  • Lavalier Microphone via 3-pin LEMO 
  • Pin-1 ground 
  • Pin-2 5 V bias 
  • Pin-3 audio/bias (8k ohm to 5 V) 
Bias Power
  • 5 V
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 (<4 GB), 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 Clock 
  • 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)