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Post by milsap195 on Jun 12, 2015 21:20:38 GMT -5
Has any body tried using different output taps on their tube amps? Carver had told me he uses the 8 tap on all his amps regardless of the speaker rating. I have tried all three taps and it does change the sound quite a bit, nothing bad but just different.
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novisnick
EmoPhile
CEO Secret Monoblock Society
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Post by novisnick on Jun 12, 2015 21:29:57 GMT -5
Has any body tried using different output taps on their tube amps? Carver had told me he uses the 8 tap on all his amps regardless of the speaker rating. I have tried all thee taps and it does change the sound quite a bit, nothing bad but just different. Sounds very interesting! I'd love to try tubes with my vinyl some day! |
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Post by audiobill on Jun 13, 2015 4:40:13 GMT -5
Of course, every speaker has different impedance curves, as do tube amp transformers......and these vary by frequency.....no way to easily predict the optimum tap match or the one you like best except by trying them.
The "nominal impedance" is just that........
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jlafrenz
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I don't want to jump in, unless this music's thumping
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Post by jlafrenz on Jun 14, 2015 8:40:00 GMT -5
Some manufacturers suggest using the 4ohm tap on their amps. Each manufacturer is different on their recommendations and I haven't seen one that explains why.
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Post by audiosyndrome on Jun 14, 2015 9:16:54 GMT -5
In an ideal world, say a 4 ohm rated speaker is 4 ohms across its entire frequency range, you would use the 4 ohm tap on the tube amplifier. That's because you get maximum power transfer when the load impedance, the speaker, equals the source impedance, the transformer output tap. But as Bill states above, in the real world the impedance of the speaker, in particular, is all over the place. So your best bet is to experiment. You can't hurt anything by doing so.
Russ
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