An olefin film is thermally adhered to the surface of the cone to control frequency response and to establish long-term reliability. The center dust cap is made of non wood cellulose material and is also impregnated with resin. Finally, the voice coil is made of super highpurity copper wire to achieve very low distortion: <0.05% THD @50W/6 Ohm.
The 1" soft dome tweeter employs the Fostex UFLC technology (Poly Urethane Film Laminated Cloth). It is both lightweight and highly stable. Both drivers are powered by specifically matched amplifiers - 120 Watts RMS for the woofer and 120 Watts RMS for the tweeter.