Experience Clarisys Audio's Auditorium for ultimate sound quality. Boasting neodymium magnets and a double-sided bass panel, this speaker creates a powerful magnetic field, allowing an amplifier a more precise current reaction and easier impedance. The ribbon midrange starts at 500Hz and is a multi-segmented 7-trace design with 42mm width--the widest ever put into a speaker. The three-trace ribbon tweeter starts at 9000Hz, and the rigid aluminum substructure prevents flexing. High-quality copper foil internal wiring ensures exceptional signal transfer and musicality. Each speaker weighs 507 lbs plus an external crossover.