2 Way 1st Order Linkwitz-Riley Series Crossover




Calculate 2 Way 1st Order Linkwitz-Riley Crossover



For optimal filter operation it is important to use the impedance (Z) of the loudspeaker at the cut-off frequency.
The DC resistance is NOT optimal to calculate crossover filters!

How to measure Loudspeaker Impedance

The huge problem with first-order filters is that cut-off slope isn't very steep; indeed, it's shallow, falling off at only -6dB per octave and -20dB per decade. This requires that the both drivers exhibit much wider bandwidth than we are likely to encounter in reality.

Z : ohms at Crossover frequency
F : Hz



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