Titanium Audio 234XL Stereo 2/3 Way / Mono 4 Way Professional Crossovers Equalizer (Black)
 
SPECIFICATIONS:
Dual channel crossover
Linkwitz-Riley 24db per octave filters
Independent output gain control for leveling matching
Output phase inversion
40hz low cut filter
Optional mono summing of the low frequency(subwoofer) output
Everything in the design exudes great precision from the solid click controls to the quality XLR inputs and outputs