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RE: First Watt B4 arrives today - setup questions for Tymp I-Ds

I know the formula for creating a 1st-order high-pass filter via a single capacitor, plugging in the power amps input impedance and the desired x/o frequency. What is the formula for the corresponding 1st-order low-pass filter? Can the low-pass be accomplished just as easily, with a single capacitor on the power amps input jacks, or are more parts required, like a resistor as well as a cap?



Edits: 04/21/17

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