This crossover is designed to divide frequencies between a mid/woofer and a tweeter. The tweeter high pass is set at 3500Hz while the low pass is slightly lower to create a smooth transition. High quality polypropylene capacitor are used in both the tweeter and mid/woofer circuits. A high quality air core inductor is used in the tweeter circuit. A heavy gauge steel laminate coil is used in the mid/woofer circuit to lower DC resistance and maintain high efficiency . There are also two direct tweeter attenuation terminals which offers a -2dB, and -4dB attenuation.