Manufacturer : Audio products
Plugin board for LR24-4 crossover module.
First order allpass filter section to correct phase shift between drivers or use multiple sections to correct for offset between drivers (forward placed tweeter).
Dual circuit on the PCB with option to use one or two circuits in series, each stage delays 128 μS.
Single stage changes from 0 to -180 degrees, both stages in series from 0 to -360 degrees.