BBE MAX-X3 2 Way Stereo or 3 Way Mono Crossover with Full Featured Sonic Maximizer BBE Sonic Maximizer adds clarity and definition LED clip indicators for both High an Low outputs to alert of excessive output levels x 10 range multiplier switch makes crossover-point adjustment easy Constant-Directivity Horn equalization provides progressive high-frequency boost required for these drivers 115dB of dynamic rangemore than any other crossover in its class BBE Sonic Maximizer adds clarity and definition LED clip indicators for both High an Low outputs to alert of excessive output levels X 10 range multiplier switch makes crossover-point adjustment easy Constant-Directivity Horn equalization provides progressive high-frequency boost required for these drivers 115dB of dynamic range-more than any other crossover in its class