Precision Audio and AV Interface Products

Radio Design Labs

HR-DDA4 Digital Audio Distributor - 1x4

  • 1 x 4 Digital Audio Distribution for All Formats
  • Input: AES/EBU, Coaxial or Optical S/PDIF, AES-3ID
  • Each Output: AES/EBU, S/PDIF or AES-3ID
  • Format Conversion for Selected Output Format
  • Operation Up to 24 bits, 192 kHz
  • Exclusive Sure-Lok™ Auto-Recovery Sentinel
  • Transformer Isolated AES/EBU Input and Outputs
  • Digital Signal Reclocking
  • Sample Rate Indicator
  • Digital Signal Lock Indicator for Each Input Format
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

The HR-DDA4 is the ideal choice in installations requiring high quality distribution of a digital audio signal. The input and each of the four outputs support AES/EBU, S/PDIF or AES-3ID formats. The HR-DDA4 automatically detects a valid input on any of the four input jacks: S/PDIF optical, S/PDIF coaxial, AES-3ID or AES/EBU. The input is decoded, reclocked and retransmitted to four individually buffered outputs. Front-panel LEDs display the digital audio format and sample rate of a valid source received without any phase-lock or bit errors.

Each output is switch-selectable to provide an AES/EBU, S/PDIF coaxial or AES-3ID output. The switch enables the appropriate output jack and any required electrical and data format conversion. The AES/EBU input and outputs are 110 Ω terminated; the S/PDIF coaxial and AES-3ID jacks are 75 Ω terminated.

The HR-DDA4 is powered from 24 Vdc, which may be connected through the detachable terminal block or through the dc power jack. A front-panel power switch is provided.

RDL's proprietary Sure-Lok auto recovery supervision monitors possible causes of latch-up and reinitiates digital signal lock, bringing a high level of stability to digital audio signal distribution under the variety of conditions encountered in professional environments.

Applications

Inputs (4):
110 Ω AES/EBU XLR, transformer isolated;
S/PDIF optical; 75 Ω S/PDIF coaxial phono jack; 75 Ω AES-3ID BNC
Outputs (12):
110 Ω AES/EBU XLR (4), transformer isolated;
75 Ω S/PDIF coaxial phono jack (4);
75 Ω AES-3ID BNC (4)
Selector (4):
Rear-panel output format selector (1 per output)
Sample Rate:
32 kHz to 192 kHz
Resolution:
16 to 24 bits
Indicators (12):
POWER LED; INPUT FORMAT LEDs (2); Sample Rate LEDs (9)
Standards:
AES3-2003, IEC60958
Ambient Operating Environment:
0° C to 50° C
Power Requirement:
GROUND-REFERENCED 24 Vdc @ 50 mA
Package Type:
Cardboard Box
Package Dimensions:
9.5 x 7 x 2.25 in.
Shipping Weight:
2.515 lbs.
WEEE weight:
2.16 lbs.
Tariff code:
8543.70.9860

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
Press Release:
Format
Declaration of Conformity:
Format
PDF

Direct Dealer Program


Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

  • Must be an A/V contractor, sound contractor or system integrator

  • Must possess a current resale certificate for your state

Click here to submit a new direct dealer account inquiry.


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HALF RACK

RDL Half-Rack products are studio quality electronic equipment in durable metal enclosures ½ rack width, 1RU in height. This series includes both digital and analog products with front-panel user controls and indicators. Connectors are located on the rear panel. Chassis are finished in black powder coat. The front panels feature a full color reverse-printed polycarbonate laminate surrounded by raised end caps and the product label track. The distinctive appearance of the Half-Rack products complements rack mounting or standalone use.

Available RDL accessories permit one or two Half-Rack products to be mounted in 1 RU. Rack mounting is easy and takes only seconds. The product drops into the rack adapter, slides forward and is secured by tightening four screws. For standalone use, each product is supplied with rubber feet secured by screws.

Attractive styling, superior performance, high quality panel controls and connectors, and durable construction make RDL Half-Rack products a preferred long-term resource for system design solutions. HALF RACK SERIES modules are designed and manufactured in the U.S.A.

HR-DDA4 HR-DDA4