Available in an 8 ohm impedance rating, this speaker can handle 450 watts of continuous power using a rugged 3" voice coil, Kapton former material, an 80 oz. (5 lb.) ferrite magnet and heavy duty pressed steel frame.  The frequency response is a most healthy 62 Hz - 4.2 kHz (see graph or PDF specification sheet below) with a resonance at 45 Hz and average...