Model C10A is a dual cone, 25-watt 8" (205mm) loudspeaker with a 10 oz. (260g) ceramic magnet. It includes a curvelinear, treatedpaper cone for lower harmonic distortion. The loudspeaker is also equipped with a full 1" diameter copper voice coil with a blackanodized aluminum former for better power dissipation. Model C10A operates within a frequency response range of 45 Hz to 19 kHz with a sensitivity of 97dB and a dispersion angle of 105Ã‚Â°. It mounts a wide variety of Atlas Sound round and square baffles and enclosures to meet functional and aesthetic application requirements. To ensure reliability and performance integrity, 100% of all C10A loudspeakers are TEF-tested at the factory. Atlas Sound operates a well-equipped, certified research laboratory which contains a fully anechoic chamber complete with analog Bruel & Kjaer measurement equipment and the TEF 20Â® audio analyzer.