BOSS AUDIO 3-Way Preamp Electronic Crossover - Selectable crossover freq: subwoofer: 40Hz - 400Hz; - 50Hz - 1.5kHz rear high pass; - 0Hz - 7.5kHz front high pass; - Front, rear & sub inputs & outputs; - Independent gain controls for each channel; - Dual input selector; - Bass boost on/off switch with frequency selector—40Hz, 80Hz or 120Hz; - Frequency multiplier 1x or 5x on high-pass output; - 12dB/oct slope rate; - Signal-to-noise ratio: >90dB ; - Gold-plated connectors; - Remote on/off power control; - LED power indicator; - Subwoofer phase & stereo/mono switches; - Includes remote subwoofer control; - Dim: 1.5H x 8W x 7.38D - Product Type: CROSSOVERS AMPLIFIERS, EQUALIZERS & CROSSOVERS Part No: BX35