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Post subject: Bias setting on Super Champ XD???
Posted: Sun Sep 27, 2009 7:33 pm
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Is it true there's a bias setting on the Super Champ XD's that will make them sound better and less compressed? Where is it, and are there any disadvantages to doing this?


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Posted: Tue Sep 29, 2009 6:53 am
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The bias pot is right behind the speaker jack, R6. Mine are blue, with a screwdriver slot. Adjust it to get 40mV on pin 8.


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Posted: Tue Sep 29, 2009 6:58 am
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YZFJOE wrote:
The bias pot is right behind the speaker jack, R6. Mine are blue, with a screwdriver slot. Adjust it to get 40mV on pin 8.

What's the difference when getting 40mV on pin 8? I really don't know anything about this :oops: .


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Posted: Tue Sep 29, 2009 8:06 am
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imc_1121 wrote:
YZFJOE wrote:
The bias pot is right behind the speaker jack, R6. Mine are blue, with a screwdriver slot. Adjust it to get 40mV on pin 8.

What's the difference when getting 40mV on pin 8? I really don't know anything about this :oops: .


Check out this link-
http://www.eurotubes.com/euro-Generic-Bias.htm
and read the section on biasing amps. There's a lot of good info here.
If you're not comfortable doing this though, you should take it to a tech. Better safe than sorry.


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