Will Subwoofer EQ ruin the phase alignment with the mains?
Often, folks are concerned about using parametric EQ filters to fix low-frequency repsonse issues in the subwoofers, for fear that the phase shift from the PEQ filters will throw off the alignment with the mains. In most cases, this isn’t something to be concerned about. Here is a matched pair of 4th order Linkwitz-Riley filters. …