Sonifex RB-DS2

The Sonifex RB-DS2 is a high-quality stereo audio delay synchroniser, designed to resynchronise audio to video after various delay-inducing processes such as standards conversion, transmission delay, logo insertion, video aspect ratio conversion, and network delays. It supports digital audio signals up to 96kHz, 24 bit, ensuring superb sonic quality and smooth, silent switching for clean audio delay.

Key Features:

• Inputs & Outputs:
  • Balanced analogue and AES/EBU digital audio on 3-pin XLR connectors.
  • Can function as an A/D and D/A unit, allowing analogue inputs to be delayed and output as AES/EBU or vice-versa.
  • Can be used in stereo, dual mono, or mono modes.
• Delay Capabilities:
  • Standard delay: Up to 10.5 seconds at 96kHz, 24 bit (42 seconds at 48kHz, 16 bit).
  • Expanded delay: With Compact Flash™ expansion (up to 2GB), delay times exceed 4 hours.
  • Delay time units: Samples, fields, frames, meters, milliseconds, and hh:mm

    (with CF expansion).

• User Interface:
  • Blue vacuum fluorescent display with rotary controller.
  • Settings include source selection (analogue/digital), channels, sample rate, bit width, format (PAL/NTSC), delay units, and delay time.
  • Input peak levels: Selectable from +12dBu, +18dBu, and +24dBu for FSD.
  • Rear panel pre-set potentiometers adjust input gain by ±3dB around the selected peak digits.
• Output Control:
  • Analogue output gain: Adjustable in software from -6dBu to +24dBu output level, ref FSD.
  • Separate muting for both analogue and digital outputs.
  • Bypass function: Diverts both analogue and digital inputs to their outputs via electro-mechanical relays, also engaged automatically during power-fail.
• Remote and Security Features:
  • Eight configurable settings can be saved and loaded, remotely controlled using GPI contacts.
  • RS232 serial port for remote control.
  • Front panel controls can be locked-out for remote operations or physical security.

Specifications:

• A/D Conversion:
  • Maximum Input Level: +28dBu
  • Input Impedance: > 10kΩ bridging
  • Signal to Noise: Better than -101dBFS (RMS A-weighted at 24bit)
  • Dynamic Range: > 110dB
  • Distortion & Noise: > 96dB THD + N at 1kHz
• D/A Conversion:
  • Maximum Output Level: +24dBu
  • Output Impedance: < 50Ω
  • Dynamic Range: > 100dB
  • Sampling Frequency: Selectable 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz, or 96kHz
  • Sample Width: Selectable 16bit or 24bit
• Physical and Electrical:
  • Dimensions: 48cm (W) x 15.8cm (D) x 4.2cm (H) (1U)
  • Weight: Nett 1.6kg, Gross 2.3kg
  • Mains Input: Filtered IEC, 85-264 VAC, 47-63Hz, 60W peak, 30W average
  • Fuse Rating: Anti-surge fuse 2A 20 x 5mm
• Connections:
  • Analogue Inputs: 2 x XLR 3 pin female
  • Analogue Outputs: 2 x XLR 3 pin male
  • Digital Inputs: 1 x AES/EBU XLR 3 pin female
  • Digital Outputs: 1 x AES/EBU XLR 3 pin male
  • Remote I/O Port: 15-way ‘D’-type plug
  • Serial Comms Port: 9-way ‘D’-type plug
  • Memory Expansion: Internal Compact Flash™ storage card up to 2GB

This device is ideal for permanent installations needing consistent audio delay correction or for intermittent use, such as live link adjustments. Its versatility, high audio quality, and robust feature set make it suitable for a wide range of professional audio-visual applications.