After entering the crossover frequency and impedance to an online calculator of a Butterworth 3rd order filter, L3 (the inductor next to the woofer) is 0.19mH, but my driver already have 0.21mH of voice coil inductance. What should be done?
Thanks.
Thanks.
Which calculator are you using? Normally the woofer is assumed to be resistive.
A suitable series RC network (in parallel with the woofer) does that.
TA Speaker Topics - Neutralizing L(e) with a Zobel
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