Kicker 03KX3 3-Way Active Crossover 3-way 18dB/octave active electronic crossover with one variable low pass and two variable high pass filters High-pass crossover frequencies from 35 Hz - 400 Hz; low-pass from 45 Hz - 250 Hz Remote control bass boost is variable to +18dB at 40Hz 24dB/octave subsonic filter, two stereo inputs, and three stereo outputs for versatile control One-year limited warranty