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Battery Ground is attached to the minus side of the network.

:)

That's A Good One! ;0

No!

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=29389&stc=1&d=1194723064

I have never built dc-biased networks for others ( though I do use them and very much appreciate...

Nice.

:)

- You forgot the 2 to 5 meg isolation resistor .
- FWIW, these batteries do represent fairly low impedance paths back to ground within the crossover circuit.
- If one omits this resistor / one...