"Eighteen Sound HD3000T-8 HF Compression Driver with 2 inch Exit Throat 8 Ohms with Titanium Diaphragm Assembly 120 RMS 240 Watt Peak Pro Audio Components Speakers Drivers for Motorcycle Car Audio Applications || FEATURES :: 112 dB SPL 1W-1m average sensitivity || 1.4 inch exit throat || 240W maximum program power handling || Next-gen 4 slot phase plug design || Edgewound 75 mm (3 in) CCAW voice coil || Titanium Dome over PEN suspension diaphragm assembly || HF copper ring for reduced distortion and increased output || || SPECIFICATIONS || Throat Diameter :: 36 mm (1.4 in) || || Nominal Impedance :: 8 Ω || || Minimum Impedance :: 6.4 Ω || || Nominal Power Handling :: 120 W || || Continuous Power Handling :: 240 W || || Sensitivity :: 112.0 dB || || Frequency Range :: 0.8 - 20.0 kHz || || Recommended Crossover :: 1.2 kHz || || Voice Coil Diameter :: 75 mm (3.0 in) || || Winding Material :: Aluminum || || Diaphragm Material :: Titanium - Pen || || Flux Density :: 2.0 T || || Magnet Material :: Ferrite || || MOUNTING AND SHIPPING INFO :: || || Overall Diameter :: 170 mm (6.69 in) || || Depth :: 68 mm (2.68 in) || || Net Weight :: 4.9 kg (10.8 lb) || || Shipping Box :: 190x175x85 mm (7.48x6.89x3.35 in) || || The 1.4"" Eighteen Sound HD3000T compression driver is used in high quality audio systems. The titanium diaphragm, anchored to PEN suspensions, is produced internally and unparalleled response to transients. The 75 mm (3"") EWAL coil in Copper coated Aluminum wire (CCAW) complete the diaphragm assembly. || Bolt circle diameter 102 mm (4 in), oral depth 75.4 mm (3 in), Net weight 5.2 Kg (11.46 lbs.), Shipping weight 5.3 Kg (11.60 lbs.) Card Board Packaging dimensions I /Ox I /0x80 mm (6./x6./x3.2 in)"