Featuring an Aluminum Phase Plug (Bullet), this mid is built like a professional midrange loudspeaker, but it has been designed for use in the mobile audio market, as we called it Pro Audio On Wheels®!! By combining elements from PRO Audio and Car Audio, we have developed a NEW type of high efficient midrange that is able to give high levels of output for your custom door. Built to Perform at Wide Frequency Range: 145 – 12,500 Hz High efficiency: 95 dB guarantees High Output Levels Handles 400 Watts – Endurance at Loudest Volumes Vented Air pole piece for heat dissipation Center phase plug for even sound distribution 4 Ohm Impedance GENERAL SPECIFICATIONS Nominal Diameter 6.5″ (152 mm) Nominal impedance 4 Ohm Nominal Power Handling* 200 Watts Continuous Program Power (RMS)** 400 Watts Max Peak Power*** 800 Watts Sensitivity 2.83V at 1m 95 dB Recommended Hi Pass Crossover For Full Power Handling 145 Hz 12db Per Octave Crossover Frequency Response 145 – 12,500 Hz Voice Coil Diameter 1.5″ (38 mm) Voice Coil Wire CCAW Voice Coil Winding Depth 9.5 mm Former Material Kapton Magnetic Gap Depth 6.0 mm Frame Material Stamped Steel THIELE-SMALL PARAMETERS Equivalent Volume Vas 4.40 l Excursion (mathematical)*** Xmax 3.25 mm Free Air Resonance Fs 144.1 Hz Mechanical Factor Qms 11.98 Electrical Factor Qes 0.64 Total Factor Qts 0.60 Cone Area Sd 143 cm² Mechanical Mass Mms 7.94 g Bl Factor Bl 6.37 Tm Dc Resistance Re 3.6 Ohm Inductance Le 0.136 mH at 1 kHz Mechanical Mass Without Air Mmd 6.97 g Mechanical Compliance Cms 0.154 mm/N EXTRA INFO Overall Diameter 6.59” (167.5 mm) Front Mount Baffle Cutout 5.65” (143.5 mm) Mounting Depth 2.62”(66.5 mm) Overall Depth 2.99”(73.5 mm) Net Weight 4.81 Lbs (2.18 kg) Shipping Weight 5.18 Lbs (2.35 kg) Carton Dimensions W x L x H 8.50”x 8.50” x 3.35” (175 x 175 x 85 mm)