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Re: I'm Not

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Phil,
Certainly, excessive capacitance is not a good thing. -It is the single biggest limiting factor on hf extension. -However, I'm mot sure that I would agree with the line of reasoning that suggests that lower input impedances aggravate the problem...

-If you were to exaggerate the effect and strap a 10 ohm resistor across the load, -making the effective load impedance 10 ohms, then the parallel effect of the capacitive reactance becomes less significant, not more. ...Although a 10-ohm load would be ridiculous, since it would most likely sound awful due to the colossal impedance mismatch, rather than capacitive load issues!

Also, 600 ohms for an SM58 or an SM57? -Not according to Shure. -See the attached pdf link for the full shure specification... 150 ohms is in fact exactly a specified source impedance for both models.


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