The crossover point occurs at 2 kHz. As I mentioned earlier, this is possible thanks to the Usher 9930's very low resonance. The tweeter is also slightly padded to smoothly match it to the woofer's output. The minimum system impedance of 4.6 ohms occurs at 7.7 kHz with the worst phase angle of -58° occurring at 1.73 kHz, making this an easy load for any good amplifier. On both the high pass and low pass circuits, new 1% precision Dayton capacitors were used in parallel to get the critical values necessary to optimize the crossover. Also, to help facilitate easy placement inside the cabinet, both the high pass and low pass circuits were constructed using separate boards. This also makes it easier when using the bi-amp terminal plate.