Convertisseur audio bidirectionnel A/D et D/A AJA ADA4

The AJA ADA4 stands out as a compact, bidirectional audio converter that handles both analog-to-digital and digital-to-analog conversion in a single 1RU, 1/3-rack-wide chassis. It offers four channels of balanced XLR analog I/O and four channels of AES/EBU digital I/O, making it a flexible tool for integrating analog and digital audio workflows.

Highlights

• Bidirectional conversion: A/D and D/A simultaneously
• 4-channel balanced XLR analog inputs and outputs
• 4-channel AES/EBU digital inputs and outputs
• Supports 48 kHz and 96 kHz sample rates at 24-bit
• Reference input for blackburst or tri-level sync
• DIP switch configuration for flexible setup

In daily use

The ADA4 provides transparent audio conversion with a dynamic range exceeding 100 dB and THD+N below 0.002%. Its balanced XLR connections ensure reliable signal integrity in professional environments. The unit is powered by a +5V DC supply (AJA DWP-U-R1) and consumes 10W.

Full specifications

• Analog input impedance: 20 kΩ balanced
• Analog output impedance: 50 Ω balanced
• Frequency response: 20 Hz - 20 kHz (±0.2 dB)
• Digital audio standard: AES3-2003
• Power supply: +5V DC via AJA DWP-U-R1
• Power consumption: 10W
• Form factor: 1/3 rack unit wide, 1RU high

Final note

The ADA4 is a reliable choice for broadcast and post-production facilities needing bidirectional audio conversion with precise synchronization.