[dorkbotnyc-blabber] mono powered speakers

[Chris Vecchio]

Make sure that the cut off wires that used to lead to the now-amputated
speaker are not shorting out.
Other than that, I can't think of anything that would cause noise or
distortion to happen.

    - Chris
    www.noisemantra.com


	-------Original Message-------
  From: Jascha Narveson
  Subject: Re: [dorkbotnyc-blabber] mono powered speakers
  Sent: 25 Jan '08 19:27


  Hi, Brent -

  Hm, this is interesting. I've purchased a $20 pair of computer
  speakers and have cut one off. Right now I'm playing a CD walkman
  through the other one, and I do notice occasionally the speaker will
  cough up little bursts of noise - not super frequent, but once or
  twice every few minutes or so. Is this the kind of behavior which I
  can expect from having chopped the other speaker off?

  thanks,

  jascha

  On Jan 23, 2008, at 9:29 AM, Brent Buescher wrote:

  > You won't get cheaper than half a normal computer speaker set; in fact
  > you should be able to find computer speaker sets with one dead speaker
  > for free.
  >
  > The only problem with that approach is that computer speaker
  > amplifiers (and similar things for mp3 players and such) have fairly
  > low-impedance inputs. This means they put a load on your circuit when
  > you hook them up to it, which can make it behave differently than when
  > they're not hooked up. May or may not matter for your application.
  >
  > The little Radio Shack speaker has a high-impedance input, or at least
  > older models did. I have one in my toolbox for tracing out audio
  > signals and so on. It is a little expensive for what you get and
  > adding a wall wart doesn't make it any cheaper.
  >
  > If you want something bigger with high-impedance inputs, watch
  > discount stores like Wal-Mart and Target for when they put their cheap
  > little guitar amps on sale.
  >
  > Another approach: if you trace out radios you can usually find the
  > input to the audio amplifier and add an auxiliary input. Wal-Mart has
  > $5 clock radios that would be easy to convert into little mono
  > amplifiers.
  >
  > Brent
  > ......................................................................

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