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    Btw those schematics are only accurate for the...

    Btw those schematics are only accurate for the original woofers involved. You don’t know the frequency response character so the woofer schematic is only ball Park. As I recall ESS only went for 8,...
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    I made a comment in other diy thread about QC. I...

    I made a comment in other diy thread about QC. I am told from a very reliable source when the Heil was introduced by ESS that they were difficult to manufacture with close consistency.

    So if...
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