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Re: Multichannel audio listening

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On Wed, 7 Mar 2018, at 21:29, Rodolfo Medina wrote:

> Fantastic...  On the back of the device I read `PLAYBACK OUTPUTS'.  I wish to
> better understand those entries: two white, two red and four black.  Please
> what's the difference between them, and how do they work? 

There's 4 phono (RCA) sockets - the white and red ones, giving you 
conventional RCA/phono connections eg to an amplifier.  Those 
will be 'unbalanced' connections ie each has a signal and a screen.

Each of the four outputs is also provided on a 1/4-inch jack socket (the
four black holes you can see).  It's just a different type of connector 
providing the same output signal, possibly 'balanced' on a TRS (tip,
ring, sleeve) jack...

The specifications listed at
http://www.musictri.be/Categories/Behringer/Computer-Audio/Interfaces/UMC404HD/p/P0BK1
do not make it clear whether the four output 1/4" jacks are TRS or not, though it does
say that the 'main outputs' (presumaby a stereo monitor mix) are available on balanced
TRS jacks as well as balanced XLRs.

Ah... the "Quick Start Guide" available on:
http://www.musictri.be/Categories/Behringer/Computer-Audio/Interfaces/UMC404HD/p/P0BK1/downloads
has a more detailed list of what each socket is - those 4 'black holes' ARE 'TLS' jacks, ie balanced - 
that is there's three connections for each channel - the +ve half of a waveform, the -ve half, & the 
screen.  So if you were connecting the four channel outputs to domestic audio/hifi equipment you'd 
use the RCA phono jacks (the white and red ones) and if you were connecting it to studio equipment
that could handle/expected balanced connections you'd use the TLS jacks (black sockets).

-- 
Jeremy Nicoll - my opinions are my own.

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Thread

Multichannel audio listening (was: Live recording) Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-05 10:40 +0100
  Re: Multichannel audio listening (was: Live recording) Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-05 12:00 +0100
    Re: Multichannel audio listening (was: Live recording) rhkramer@gmail.com - 2018-03-05 14:50 +0100
      Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-05 17:20 +0100
        Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-05 18:00 +0100
        Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-05 18:10 +0100
      Re: Multichannel audio listening Ric Moore <wayward4now@gmail.com> - 2018-03-06 00:00 +0100
  Re: Multichannel audio listening (was: Live recording) Joel Roth <joelz@pobox.com> - 2018-03-06 20:30 +0100
    Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-07 10:10 +0100
      Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-07 20:30 +0100
        Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-07 22:40 +0100
          Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 15:30 +0100
      Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-07 20:40 +0100
        Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-07 20:50 +0100
      Re: Multichannel audio listening Joel Roth <joelz@pobox.com> - 2018-03-07 22:20 +0100
        Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-08 15:20 +0100
          Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 15:40 +0100
            Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-08 16:10 +0100
              Re: Multichannel audio listening Doug <dmcgarrett@optonline.net> - 2018-03-08 20:50 +0100
                Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 21:10 +0100
                Re: Multichannel audio listening Don Armstrong <don@debian.org> - 2018-03-08 21:50 +0100
                Re: Multichannel audio listening Doug <dmcgarrett@optonline.net> - 2018-03-09 03:30 +0100
                Re: Multichannel audio listening Richard Hector <richard@walnut.gen.nz> - 2018-03-10 08:20 +0100

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