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Hf Crossover


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Are both active and passive needed for HF????


Not in a well designed system. The only reason you might want a passive low-pass filter is to filter off any ultrasonic signals that come out of the amp and toast your drivers. But as long as your active x-over sorts this out and your amps and wiring are OK it shouldn't be a problem.

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Sorry, I didn't make myself clear...


A passive high pass filter at the same frequency as the active crossover setting


The only possible reason to do this is to stop you toasting your HF drivers if you accidentally plug them into a full range signal. I've always used multi-way connectors to stop this happening.


The only reason not to do it is cost, it's unlikely the filter will degrade performance.

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