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Thread: Need a resistor value for the JBL N250Ti crossover

  1. #1
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    Need a resistor value for the JBL N250Ti crossover

    On the attached schematic, the resistor connected to the C9 / C10 shunt on the 108H driver is missing its name and value. I think it's R3. Does anyone have its impedance value? Thanks!

    (I'm still mucking around with various crossovers ideas.)

    Eric
    Attached Images Attached Images

  2. #2
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    Got it (I think)

    From a photo, I can sort of see what looks like 5.1 ohms.

  3. #3
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    Maybe this will help ( or just confuse you ) .



    Above is Giskards' reworked/redrawn N250Ti network .
    The capacitor values ( & quantities ) are setup for Charge-Coupling ( DC-Biasing ) .
    Resistor & Inductor values should to be the same as the original network .

    FYI, That HF padding arrangement appears to be missing a return connection ( from the buss-bars to the "O db" post ) for those 3 inline resistors .

    <. EarlK

  4. #4
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    Thanks, Earl; that does help. (And I can see where the HF bus bars would connect.) I did see that schematic earlier today, but I didn't notice the resistor values were the same.

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