Model C5AT72 is a reliable, economically priced 15-watt loudspeaker with a pre-mounted 25/70.7V 4W transformer that offers many features found in speakers costing considerably more. It includes a curve linear, treated-paper cone for lower harmonic distortion. It is also equipped with a full 1" diameter copper voice coil with a black-anodized aluminum former for better power dissipation. Model C5A operates within a frequency response range of 50 Hz to 18 kHz with a sensitivity of 96dB and a dispersion angle of 105°. It mounts a wide variety of Atlas Sound round and square baffles and enclosures to meet functional and aesthetic application requirements.