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|    rec.audio.tech    |    Theoretical, factual, and DIY topics in    |    41,683 messages    |
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|    Message 39,943 of 41,683    |
|    David Nebenzahl to All    |
|    Re: Impedence matching problem    |
|    22 Aug 10 18:04:56    |
      From: nobody@but.us.chickens              On 8/22/2010 4:34 PM Bill Graham spake thus:              > I am new to this group, so I apologize for asking a question than may have       > been asked and answered many times before. I am a trumpet player, and I       > would like to mike my horn and add a chorus effect to the output of the       > mike, which I will then send to my 45 watt Beherenger keyboard amp and       > speaker unit. I am using an Audio Technica PRO 35 R condenser mike which has       > a low impedance output, since it requires a phantom power unit, and when I       > put this signal into any of several chorus units, the result is very       > distorted, since all these units are made for electric guitars, and they all       > have high impedance inputs, as far as I know. What I would like to know is,       > does anyone know of a chorus unit that can accept a low impedance input so       > it can be driven by a condenser mike without distorting? Or, if not, how can       > I change the mike output to a high impedance so it won't seriously overdrive       > the chorus effect unit?              Not an answer, but speculation (informed, I hope): since a       high-impedance input won't overload a low-impedance device (as it will       if vice versa), couldn't he just insert a pad (L pad? T pad?) between       mike and input? Seems like this is more of an attenuation problem than       an impedance-mismatch problem. (In other words, the mike is overdriving       the input: too much voltage.)                     --       The fashion in killing has an insouciant, flirty style this spring,       with the flaunting of well-defined muscle, wrapped in flags.              - Comment from an article on Antiwar.com (http://antiwar.com)              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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