jimk1963
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- Mar 20, 2023
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Not sure what drove your last comment, but to your reading that “for power and distortion measurements, electrostats can not be accurately modeled with linear components”, this is abundantly obvious to anyone who’s ever modeled circuits. LRC passives, without any modifications, are purely linear - you can never build a pure LRC circuit model that exhibits distortion. Distortion requires a nonlinearity(ies) somewhere in the system. Any model that hopes to simulate a circuit exhibiting distortion must therefore also include nonlinear elements.I have been reading about it recently, modelling of speakers with LCR components that is, and it gets even more complicated when the mechanical effects starts to have an impact on the electrical characteristics. For electrostats, which is the edge case being discussed here, there is even an article that says for power and distortion measurements, electrostats can not be accurately modeled with linear components. I have shared the article in the other thread, but guess the discussion has moved on the social sciences side of things with cults and such, rather than the engineering one.
The trick in circuit modeling is understanding when to apply linear modeling vs. more complex nonlinear modeling. For the discussions on this thread, we aren’t looking at amps being driven to high output levels where a speaker might distort and affect its equivalent circuit. Rather, the findings here (I think) are at low power where any decent speaker would/should be running well within its linear region. Unless e-stats have big distortion issues at low powers, we should be able to consider a passive LRC model for those as well. Whether this thread’s 2.2uF is good for that modeling, I have no idea.