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1 Replies Last post: Nov 6, 2009 8:34 AM by joegillespie  
steveguttman  
steveguttman
8 posts since
Aug 1, 2009
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Nov 6, 2009 4:22 AM

Hiss problem with new Spider Jam

Hi

 

Not sure if this is a problem, but something doesn't seem right. When I have the volume cranked up around level 4 or 5 I get a hiss sound from the amp. The problem seems to be directly related to the mic input. When I turn the mic trim nob up the hiss gets worse. Even with the mic trim nob turned all the way down and the mic input level set to off, i still hear the hiss starting around level 5 of the master volume. As a note, if I plug in the headphones I don't hear any hiss.

 

Thanks

 

steve

Tags: spider_jam, spider-jam, amplifer, trouble
joegillespie Iknowathingortwo
joegillespie
443 posts since
Mar 31, 2007
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1. Nov 6, 2009 8:34 AM in response to: steveguttman
Re: Hiss problem with new Spider Jam

You need to turn down the MIC input level. Press INPUT/LEVEL button twice. MIC should be selected and the LCD reading shows something between -60 and +20 dB. Use the large silver knob to wid the MIC input level down to about -10 dB and the hiss should go. Keep the MIC sensitivity down to about half way, or off completely of you are not using a mic.

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