Get the most out of your speakers. Supply them with only the frequencies they need, and get maximum efficiency with a dbx 234s Stereo 2 + 3-Way/Mono 4-Way Crossover. When you give each driver only the frequencies it needs, it can use every drop of its power handling on the audible signal. The result is simple - clear, powerful, undistorted sound. You can operate the crossover in 4-way mono, 2-way stereo, or 3-way stereo modes. This gives a good amount of versatility for use with different speaker combinations. You'll also be getting sharp, high quality, and clean filtering thanks to the Linkwitz-Riley 24dB per octave filters.