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Post subject: Tube Amp Output Stage
Posted: Wed Jun 03, 2009 1:32 pm
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Hobbyist
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Location: Talleyville, Delaware
I recently purchased a Super Champ XD and absolutely love it. My first tube amp in 30 years. I have been using a Marshall MCD 10, which I also think highly of. The Marshall has a headphone jack that I found very useful when I wanted to play and not disturb the wife or the cats. My question is this; The Marshall has an emulated line in that I want to feed with the line out of the SCXD so that I can still use the headphone feature. I will have to unplug the speaker to silence the SCXD. Will unplugging the speaking cause any type of damage to the output stage? I wouldn't imagine that I would have the volume of the SCXD up TOO high, but I think that tube amps act differently than solid states with no load. Any ideas?

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Posted: Thu Jun 04, 2009 7:32 am
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Using a tube amp with the speakers unplugged(no load) will fry your output transformer.You'll have to use a dummy resistive load.Google is your friend. (Dummy Speaker Load) It should be the same impedence as the speaker in your amp.

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