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Diagnostic Help Please: Audio is Weak and Scratchy

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nuckolls.bob(at)aeroelect
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Posted: Mon Apr 15, 2013 1:24 pm Post subject: Diagnostic Help Please: Audio is Weak and Scratchy

At 10:03 PM 4/11/2013, you wrote:




It looks like I have the audio troubleshooting solved.



<anip>



Now everything works well and the chips aren't getting hot. I mention 

all of this for the benefit of anyone else who will be using the 9009 

with these systems- start much higher than 150 ohms!  This whole 

process has given me much more understanding of my audio system, and 

also a real appreciation for the design of the 9009. Thanks Bob for 

making it available!  I don't know how other folks are getting by without it.



     Good to hear. I considered putting potentiometers on

     the board during the development process but discarded

     the idea in favor of the fixed resistors on a socket.

     As you've discovered, it takes a bit of fiddling to get

     them right but it's a once-in-an-installation process

     that would not benefit much from future adjustability.



     Thanks for the feedback.



   Bob . . .

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