Foster WF-100K plate amps

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vann

vann

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Joined 2008
planet10 said:
There is lots of info for tweaking them... the LF roll-off is a filter that can be removed or changed.
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Dave, maybe you remember adjusting your amps. Can you please confirm that I've identified the correct parts on the PCB for adjusting the high pass filter?

Jack Hidley said:
To determine the correct boost, Q and F for the HP, model the woofer/cabinet system and the electrical filter in any of the standard free box modeling programs. You don't need the woofer parameters. Just put a woofer into a sealed box and adjust the woofer parameters until the Qcb and Fcb match the measured system response.
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Can I use this to determine Q and F for the HP of my combination of Dayton DCS380-4 15" subwoofer driver in Tuba HT? (since it's not sealed box but folded horn cabinet)
 

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