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TC Electronic D22
The TC Electronic D22 is a High resolution Delay for broadcast master control and linking. Delay-time may be adjusted while signal is being passed, thanks to a low artifact processing technique. The delay is easily adjustable from the front panel using dedicated Nudge keys, Encoder and Tap function. Increments can be set in ms, fields or frames, and the unit delays linear audio as well as Dolby E or AC3 streams. Remote control of by-pass and delay time is available through GPI or RS485 inputs. Balanced and unbalanced AES/EBU I/O is standard, and outputs are always active. Sample rate conversion can be invoked when using digital inputs.

Analog I/O is standard, and outputs are always active. The 24 bit converters are scaled in the analog domain, with scaling under preset control, to minimize noise and maximize headroom under all operating conditions.
Features
Digital Broadcast Delay
  • Seamless Delay update - No clicks, pitch changes and or other unwanted artifacts
  • Digital I/O's: AES/EBU, S/PDIF, Wordclock BNC 75ohm5200 ms Delay per channel
  • Analog 24 bit A/D-D/A converters
  • True 24 bit delay resolution
  • Sample rates: Internal 44.1, 48kHz - External 32, 44.1, 48kHz
  • Sample Rate Conversion from 31-49kHz
  • Total Recall via programmable setups
  • Tap Delay time - Instant or Preview
  • Delay time in: Frames (Various resolutions), Sub-frames, Fields, Milliseconds and Sub-Milliseconds (0.1 ms increments)
  • Separate Dial and Nudge for Delay time adjustment
  • Independent Dial/Nudge resolution
  • Built-in digital Output Fader (remote controllable)
  • Remote capabilities: RS-485 (Input only) for Recall Setup, Delay time adjustment & GPI for external control of the digital Output Fader or Tapped Delay time
  • User Interface Lock mode for "Set & Forget" purposes


  • Unique User-Interface
    The resolution of the delay can be displayed in frames, sub-frames as well as milliseconds and sub-milliseconds (0.1 ms increments), allocated individually to each of the two delay time controls. The Tap control features a Preview as well as an Instant mode. The Preview Tap enables preview of the tapped delay time before it is inserted in the actual Audio chain, while the Instant Tap inserts the tapped delay time immediately. The User Interface also has a "Set and Forget" lock function, for when the D22 is being used in a more "fixed" environment.

    Remote Options
    The D22 can be remote controlled via RS-485, allowing the user to change Delay time or even the full setup from a distance. GPI (General Purpose Impulse) allows external control of Tap Tempo as well as Master Fader output.

    Ultimate Hardware
    The D22 is equipped with industry-leading 24 bit AES/EBU and S/PDIF digital interface and 24 bit A/D-D/A converters. The Delay algorithm itself carries a full 24 bit signal through to the output. Even when bypassing the D22, true 24 bit resolution is maintained, leaving the digital signal untouched. When used in Analog setups the D22 contains Relays, enabling hardwired bypass to ensure uninterrupted signal flow in the event of an unexpected loss of power to the unit.
    Specifications
    Digital Inputs and Outputs
    Connectors : XLR (AES/EBU) RCA Phono (S/PDIF)
    Formats : AES/EBU (24 bit), S/PDIF (20 bit), EIAJ CP-340, IEC 958
    Output Dither : HPF TPDF dither 8-24 bit
    Word Clock Input : BNC, 75 Ohm, 0.6 to 10 Vpp
    Sample Rates : 32 kHz, 44.1 kHz, 48 kHz
    Processing Delay : 0.5 ms @ 48 kHz
    Frequency Response DIO : DC to 23.9 kHz ± 0.01 dB @ 48 kHz
    Sample Rate Conversion Type : Asynchronous
    Dynamic Range : 120 dB
    THD+N : -106 dB 44.1 to 48 kHz @ 1 kHz, -2 dBFS

    Analog Inputs
    Connectors : XLR balanced (pin 2 hot)
    Impedance : 20 kOhm (balanced)
    Max. Input Level : +27 dBu (balanced)
    Min. Input Level (for 0 dBFS) : -4 dBu (balanced)
    A to D Conversion : 24 bit (1 bit, 128 times oversampling)
    A to D Delay : 0.8 ms @ 48 kHz
    Dynamic Range : >103 dB (unweighted), >106 dB(A)
    THD : -95 dB (0.0018 %) @ 1 kHz, -6 dBFS (FS @ +18 dBu)
    Frequency Response : 10 Hz to 20 kHz: +0/-0.2 dB
    Crosstalk :
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    Additional information
    For more information about the D22, please visit the website of TC Electronic
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