• 2020-08-24


    I'm a RF engineer with an audio problem.

    I have an old system that I'm trying to interface with that has a 0-60KHz baseband that I need to capture and play out in real-time. It looks like the Line In/Out on the UMC202HD will do the trick pretty handily at the 192KHz sample rate. The mux has a 135 Ohm interface. 

    Can any of you audiofiles tell me what the impedance is on the UMC202HD line in/out connections so that I can build the matching circuit?

    Also, can anyone confirm that the Line In/Out jacks will play and record up to 60 KHz of baseband simultaneously? I'm used to designing systems between 300 MHz and 20 GHz, so I'm a bit out of my element. 

    Thanks in advance!


    0 20
    • Joseph Freivald
      Rex Beckett Hi Joe, I'm not sure if the UMC202HD will do what you want. I have measured some of the characteristics of my UMC404HD (same preamps and output drivers as the UMC202HD) and confirmed that they agree with the published specs.

      The frequency response of the preamps is specified as 10Hz - 50kHz (+0, -3dB)
      I measured the Line input impedance as 42K @ 1kHz (balanced)
      The frequency response of the outputs is specified as 10Hz - 43kHz (-0, +0.3dB)
      I measured the XLR output impedance as 100 Ohms @ 1kHz (balanced).
      • Aug 24
  • 2020-02-10

    Who do I email in order to submit a Country of Origin request, to obtain a statement identifying the COO for Behringer products? This is required for Supply Chain Risk Management assessment. I've submitted tickets, but they all seem to disappear into a black hole that I cannot access, and I've recieved no response on them.

    0 162
    • Joseph Tatroe
      Alexander Lane

      Hi @jtatroe ,


      Firstly, apologies for late reply on this, the support portal is the correct way to request this.


      In future, please contact me with your case number and I will chase it up for you.

      • Apr 20
  • 2019-07-12
  • 2019-03-05


    Since governments are generally believed to work rather slowly an adjustable input and output delay on the X Air and M Air series would be a great feature to enhance those mixers for governmental use cases.

    Is it possible to add this in a firmware update? 


    Kind regards, Felix (SCNR)

    2 885
    • FelixHomann
      Paul Vannatto

      I would think that if they allowed the delay to go that slow, we'd get all kinds of complaints here that the console had crashed...


      • March 5, 2019
    • FelixHomann
    • FelixHomann
      roy ookzoo

      maybe even non governemental users are eagerly waiting for this logical addition.....

      i don't have to explain here how stupid it is that the output-delay option still isnt available.

      there is talk about this subject at least for months now, what 's the problem....?



      • June 17, 2019