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Original Message
RE: MMG MiniDSP and bi-amp Questions
Posted by neolith on February 24, 2012 at 18:32:30:
The phase relations are determined by the math. Here's two graphs that show the difference between a symmetric 1st order crossing at 800 hz and an asymmetric 1st order also crossing at 800 hz.
With the symmetric the phase difference is a constant 90 and the output of normal polarity and inverted polarity are superimposed on each other.
With the asymmetric, the phase difference varies with frequency and the normal polarity creates a dip while the inverted polarity has a much shallower dip.