• Blackmagic Design

  Cannot change Multibridge Audio Headroom

  Posted by Udo on September 6, 2005 at 3:15 pm

  hello,

  we have a little Problem here in Germany/Europe with the audio headroom.
  Our Headroom is standard -9dB. The Headroom preset Headroom in the Multibridge Box is (as it looks) -18dB.
  If you put a digital -18dB Test Tone via SDI embedded to the Multibridge, there is a distorted +1dB Out on the analog Outputs.
  There is no Posibillity to change that?!
  Standard is if you put -9dB digital to the box, there should be a 0dB out on the Analog Outs.
  We need a Switch or better a Numeric Field were you can change the Headroom!!
  The preset Headroom is not usable in Germany (or other Country which use -9dB Headroom)

  best regards…

  Udo Popp

  Gino De cock replied 20 years, 12 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Gino De cock

  September 30, 2005 at 10:41 am

  Hi,

  I had the same problem. To solve this I changed the electronics of the multibridge.

  At analog input side: Change 8 X 24K resistors to 6K8
  At analog output side: Change 8 X 10K resistors to 3K3

  Greets,
  Gino

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