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FILTERS •
CROSSOVERS
16
Butterworth Crossover
(1 pole): A type of crossover circuit low-pass filter
design characterized by having a maximally flat magnitude response (i.e., no
amplitude ripple in the passband).
Linkwitz-Riley (LR-4) Crossover
(2 poles): The 4th-order (24 dB/octave
slope) Linkwitz-Riley (LR-4) design represents a vast improvement over the
previous 3rd-order (18 dB/octave) Butterworth standard. It consists of a
cascaded 2nd-order Butterworth low-pass filter, and is considered the de facto
standard for professional active audio crossovers.
The XAP 800 also has an intuitive filter display, which shows the aggregate filter
response in a particular processing block. This display can also overlay the
filter responses of other processing blocks, which is useful in designing active
crossovers. The aggregate phase response of the processing block can also
be shown superimposed on the filter response curve.
Summary of Contents for XAP 800
Page 1: ...XAP 800 White Paper ...
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