CAT 1796 8-Channel D:A Converter (AES3)

CAT 1796 8-Channel D:A Converter (AES3)

The Cat 1796 is a low-cost Digital to Analog (D-to-A) converter designed for cinemas. It converts 5.1 audio with the capability of routing Hearing Impaired (HI) and Visually Impaired Narration (VI-N). If the installation requires Dolby Surround 7.1, HI/VI-N must be routed outside this device.

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  • 4XAES DB25-Female connector. Uses the DMA8Plus/CP750/CP850 pinout. Total of 8 channels accepted with ability to use channels 7/8 or 15/16 for HI/VI-N.
  • RJ45 input, channels 1–8
  • RJ45 input, channels 15/16
  • (The RJ45 and DB25 AES inputs are wired in parallel. One connector will be used and the other will have no connection.)

Digital Hi/Vi output

  • Single RJ45 carries HI/VI-N on pair 4 (pin equivalent to Sony transmitters, Odyssey HI/VI-N RJ breakout boards, and others.)

Analog outputs

  • DB25-Male, uses the DMA8/DMA8Plus pin-out. Balanced outputs for 5.1 audio with HI/VI-N, or 7.1 audio with no analog HI/VI-N support
  • 5-position, 3.81 mm Phoenix plug for HI and VI-N (balanced outputs)

Hi/Vi routing

  • Jumpers are available for selecting AES channels 7/8 or 15/16 for HI/VI
  • Other jumpers select between Digital or Analog HI/VI output

Other settings

  • Internal jumpers allow the selection of “5.1 plus HI/VI-N” (default), or “7.1 Dolby Surround” modes.


  • 19”W (482mm) x 5”D (127mm) x 1.75”H (44.5mm) (Unit)
  • 22”W (559mm) x 6.5”D (165mm) x 2.5”H (63mm) (Shipping)
  • 2.05 lbs (.93 kg) (Unit) - 3.1 lbs (1.4 kg) (Shipping)


  • Input: 100 – 240VAC, 0.48A, 50 – 60 Hz
  • Output to 4XD2A: 15VDC, 1.3A
  • Maximum PWR Consumption: 13.5W
  • BTU (heat produced): 4 BTU/hr

Operating conditions

  • Standard operating temperature:0° C to 40° C (32° F to 104° F)
  • Non-operating temperature: -10° C to 60°C (14° F to 140° F)
  • Standard operating humidity: 20% to 80% noncondensing
  • Non-operating humidity: 20% to 80% noncondensing


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