Gold-Plated terminals are spring-loaded and designed for large capacity (up to 12 gauge) cable. Angstrom Loudspeakers employ the best quality polypropylene capacitors that optimize our finely tuned cross-over network. All components are secured to the glass epoxy board using the best adhesives that ensure a lifetime of optimum performance. Ambienti Speakers feature top quality trim rings and hardware that create the most rigid installation possible. All Ambienti Speakers are internally wired using Atmos Air speaker cable. Angstrom Loudspeakers' extensive laboratory testing revealed this cable enhanced the dynamic accuracy of the speakers when compared to many other cables. Specifications & Dimensions: