Have a question regarding the duties of C1 and C2 in a third order passive crossover..
Does one determine the actual crossover point C1 ?? and the other C2 ?? determine how steep the slope is? (Or is the rate of the slope the duty of the inductor L1 ?)
Or am I off and it's none of the above? 😱
Any help would be appreciated.
thanks
Does one determine the actual crossover point C1 ?? and the other C2 ?? determine how steep the slope is? (Or is the rate of the slope the duty of the inductor L1 ?)
Or am I off and it's none of the above? 😱
Any help would be appreciated.
thanks
A third order crossover is nominally 18 dB per octave, each of the three crossover components adding 6 dB of slope.Have a question regarding the duties of C1 and C2 in a third order passive crossover..
Does one determine the actual crossover point C1 ?? and the other C2 ?? determine how steep the slope is? (Or is the rate of the slope the duty of the inductor L1 ?)
Or am I off and it's none of the above? 😱
Because the driver is not a resistance, but is a variable impedance, all four component's interactions determine the actual acoustic crossover slope and frequency.
In a classic high-pass filter with smooth transition from stop to pass band C2 usually is three times larger than C1. In this case, a fair simplification is to regard it as a second order filter composed of C1 and L1, which slightly is tuned by the additional capacitor C2. When C2 gets smaller, the knee in the transfer function becomes sharper and at C1=C2, the transfer function even shows a peak. The -6 dB point of the filter only rises moderately when C2 is changed in the range indicated.
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