Re: [PLUG] OT: multiplexing speakers?

["Brian Vagnoni" <bvagnoni@v-system.net>]

Some KVM switches have audio inputs. Or just get a 3 way switch or 3 channel mixer from radio shack or other retail/pro audio gear store.; simple. Assuming you are talking about analog audio out and not the digital SPIF.

A mixer as the name suggests gives you the ability to hear all 3 mixed at once or individually. Depends what you want. Low level audio is very easy to split. You mite just try jumping them all together. If they make a Y adapter then 3 shouldn't be all that much different.

Brian Vagnoni

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From: Stewart B Lone [mailto:v592653589793238@verizon.net]
To: Philadelphia Linux User's Group Discussion List [mailto:plug@lists.phillylinux.org]
Sent: Sun, 07 Oct 2007 23:09:32 -0400
Subject: Re: [PLUG] OT: multiplexing speakers?

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JP Vossen wrote:
> I have several machines in a server closet in my office. Right now
> I have 2 sets of speakers in my office, but now I need 3. Rather
> than buying yet another set and building another extension cord, is
> anyone aware of a good way to "multiplex" or share them?
>
> I'd say that they won't all be in use at the same time, but that
> might not be true. I can live with manual switching or only
> allowing 2 at a time to work.
>
> I'd also assume that just building some kind of "Y" cable would be
> a bad idea, e.g. it might fry the sound cards? Like: [PC / sound
> card 1]---\ \_________[speakers] [PC / sound card 2]---/
>
> TIA, JP
> ----------------------------|:::======|-------------------------------
> JP Vossen, CISSP |:::======|
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> http://www.jpsdomain.org/
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I think what you need[If "they" dont sell it as a product, you can
make it yourself] is a transformer with the input having the same
impedance as the output of your sound card. On the output side you
need three outputs[pairs] with the same impedance as your speakers. If
I remember correctly speaker impedances usually fall around 8 ohms.
You would have to take into consideration the draw that the
transformer would put on the output of your sound card. If you were to
build yourself, I know that pretty much all the components you would
need are available at "Mouser". they are googleable. Their customer
sevice guys are very knowledgable and in my experience would probably
guide you in selecting the correct transformer. the rest of the box
would just be connectors. and rudimentary soldering

HTH
Stewart








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___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug