Jeff Urban is being Silly wrote:


** Mere supposition, not one tiny bit fact.

No, here's a fact, THEY ARE CAPACITIVE.


** So is nearly everything...


I have already had problems due to tape bias on those.

** Tape bias is not 500kHz, more like 50kHz.

You were not using an IcePower module.


Fact is any HF leakage out that class D amp will see a near dead
short on the load if it is piezo.


** Horse manure.

Firstly, the impedance of a twin lead speaker cable at 500kHz is 20 ohms or more - in series with the load.

Secondly, nearly all piezo tweeters have an inbuilt 30ohm series resistor or a small lamp to protect them.

Thirdly, a class D amp already has a large value cap DIRECTLY across the output to act as a filter.


Sorry to intrude on your vision of perfection.

** Sorry to burst your bubble pal.

I see you make no more mention of electrostats?

I used to own Quad ELS and know lots about them plus most others.

Wanna continue displaying you ignorance?


..... Phil