15cm Large Magnet Revelator Sliced Cone

"Scan-speak 5"" Revelator Paper cone woofer - Low Qts version" Outside diameter: 148mm Cut out: 125mm Depth: 71mm 25.4mm = 1" = 2.54cm The 15W/8530K is a 5 ½" Revelator mid/woofer. It features a non-resonant cone and dust cap structure, dynamic linear suspension, SD-1 magnet system, “Grasshopper" cast chassis with maximized air flow and resonance terminating mounting system. Less resonance in all structures, lower compression and higher linearity, faster termination of excess energy and higher sound pressure capability make the 15W have more musical and dynamic capability than any other 5 ½" we know of. Wonderful bass in a small box! TECHNICAL DATA: Sensitivity 2.83V/1M 85.5/84.5dB Free air resonance Fs 30 Hz DC resistance 5.8 ohm V.C. inductance 0.35 mH Power 12dB@Hz 60W Effective cone area 95 cm2 V.C. diameter 38 mm V.C. height Air gap height - Lin. & max. excursion ±6.5 & ±9mm Air gap flux density - Force factor BL Product 7/6.1 Tm Moving mass incl. air 13 g Net weight 1.6/1.3 kg Vas 28 ltrs Qms 4.9 Qes 0.29/0.38 Qts 0.27/0.35