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RE: 5X the Operating Z

Posted by dave slagle (M) on July 20, 2015 at 18:38:03

In Reply to: 5X the Operating Z posted by Triode_Kingdom on July 20, 2015 at 18:08:11:

I'll agree that in a perfect world... more is better but in the real world, what is the "acceptable loss" caused by finite inductance?

I think there are two extremes at play here. One extreme is a plate choke attempting to deliver maximum voltage with very little current (large value load) and the other an output transformer attempting to deliver maximum current. What I am interested in is discussing the huge grey area inbetween.

When it comes to current delivery to a speaker through an output transformer, increasing the load value increases distortion since the increase of turns ratio requires more voltage swing and any gains from making the loadline more horizontal are lost by the increased voltage demand. This follows the same lines of for a given power output, an 845 will have less distortion than a 45.

dave

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