TECHNICAL PARAMETERS Nominal Impedance 8 Ohm Minimum Impedance 6.3 Ohm AES Power above 0.9 kHz (1) 70 W AES Power above 0.65 kHz 50 W Maximum Power above 0.9 kHz (2) 140 W Maximum Power above 0.65 kHz 100 W Minimum Crossover Frequency (3) 0.9 kHz Sensitivity (1W/1m) (4) 109 dB Frequency Range 0.518 kHz Voice Coil Diameter 74 mm (2.91 in) Winding Material Al Former Material Kapton Diaphragm Material Titanium Diaphragm Shape Dome Winding Depth 2.35 mm (0.09 in) Magnetic Gap Depth 2.8 mm (0.11 in) Flux Density 1.8 T Magnet Neodymium Slug Crown Re 5.6 Ohm Phase Plug Design Annular Exit Angle (5) 7 Conical NET Air Volume filled by HF Driver 0.7 dm^3 (0.025 ft^3)