HF: 19 mm (0.75 in) PEI diaphragm, low-viscosity ferro-magnetic fluid, and lightweight Kapton™ voice coil former. LF: 135 mm (5.25 in), woven-fiberglass cone with pure butyl rubber surround with Weather-Edge frame protection, high-temp fiberglass voice coil former, high-temp voice coil wire, optimized cone geometry, linear suspension spider, and FEA optimized motor structure. Continuous Pink Noise (116 dB peak)ħ0V: 30W, 15W, 7.5W, 3.7W 100V: 30W, 15W, 7.5W Insertion Loss <0.94 dB at any tap setting Thru Setting: 8Ω nominalĦ0 Hz high-pass (24 dB/oct) (for 8Ω operation and for all 70V/100V taps settings). 200 W Continuous Program (2 hrs) 100 W (400W peak), Continuous Pink Noise (2 hrs) 75 W (300W peak) Continuous Pink Noise (100 hrs)ġ10 dB ave.