KnowledgeBase | K2500R | Audio Output


Working with the K2000/K2500 Digital Outs (sampling option)

Question:

How can I enable the K2's sampling option digital output?

Answer:

You need to have the sampling option in your unit if you want to be able to have Digital Output. The sampling option provides a 16 bit stereo digital output, with both coaxial and optical connectors. This digital output is actually the output of the sampler's Analog to Digital Converter, and can convert external analog signals, or the K2's analog mix output, into AES/EBU or SPDIF format. This can be at a selected rate, either 48, 44.1, 32 or 29.6kHz, or can be slaved to an external clock.

Here's a step by step explanation of how to make the sampling option digital output work:

  1. Go to the Sample Mode page. (In Program, Setup, Quick Access, or Master mode, press the Sample soft button.)
  2. Set the value of the Input parameter to Digital to access the Format parameter.
  3. Set the value of the Format parameter as needed. SPDIF is the most common setting. You may want to use AES/EBU in professional environments.
  4. Set the value of Input to Analog to access the Source and Rate parameters.
  5. Set the Src parameter to Int for the K2's own analog mix output, or if you want to convert an external analog source to digital, set it to Ext.
  6. Set the Rate parameter as needed for cases where the K2 is the master. If you need to slave to an external clock, connect the master signal to the digital input, switch Input to Digital, and set the value of the Cable parameter to coaxial or optical, based on the digital input. The Input parameter controls whether the K2 is the master (Input=Analog) or slave (Input=Digital).

At this point if you generate audio on the K2 you should see its sample mode meters light up active, indicating the digital output is sending.

Assuming your receiving device is setup correctly (meaning as either master or slave, depending on your desired configuration) you now should have audio.

NOTE: when using digital outs, it is important to realize that the digital signal is derived from whatever you have routed to your analog MIX outs. So if you are currently setup where you have multiple analog outs in use, routing things to different places, this will in turn affect what you hear (or don't hear) form the digital outs as well. So if this applies to you, the simplest thing to do is temporarily disconnect any analog cables you have physically attached to any of your individual (A-D) outs. You can leave any cabling attached to the Mix outs, those will not affect things.


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