Experience Clarisys Audio's Auditorium for ultimate sound quality. Boasting neodymium magnets and a double-sided bass panel, double-sided midrange, and double-sided treble. All drivers are 100% identical, giving you perfect coherence.  The Impedance is 7ohm on average and never drops below 6ohm! The ribbon midrange starts at 600Hz 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 604 lbs plus an external crossover, which is color matched.