SG15, built with high flux ferrite motor. The motor utilizes Y30. The SG Series features an enormous 12mm (0.5”) magnetic gap to ensure the coil is always under control.
Keeping the subwoofer operating cool under such extreme conditions, is the result of the advanced air flow cooling design incorporated into the motor structure.
This motor drives a 3” diameter 4-Layer Flat Wire Aluminum Coil with an extremely long winding (0.95” long) wound on a thick aluminum former to incredible levels of excursion.