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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: RE: output power posted by Bromo33333 on July 12, 2014 at 06:42:36:
FWIW, load plays a huge role in the operation of a class A amplifier with a higher output impedance. If there is an output transformer, loading the transformer on a tap lower than the tap is set up for (4 ohms on the 8 ohm tap) can cause the amplifier to not be operating in the class A region.
This of course is true of OTLs as well. The M-60 can operate class A, or it might be AB2, depending entirely on the load impedance.
There is also the issue of efficiency. If the load is lower impedance, a portion of the power generated by the output section will not be transferred to the load but instead dissipated by the output section itself. This causes it to run hotter.
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Follow Ups
- RE: output power - Ralph 09:49:47 07/14/14 (0)
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