Water-repellent treated paper cone, butyl rubber surroundPure copper voice coil wound on aluminum former, for very good thermal and mechanical capacityLarge motor assembly for excellent mobile voice coil controlLow carbon content plates for maximum magnetic permeability and high heat dissipationRubber magnet cover provides damping to the basket and motor structure and protects from abrasions and damagesDIN size basket coated with scratch-proof, corrosive-resistant materialTin-plated, high current terminalsSilver-plated lead wires, for maximum reliability and conductivityEpoxy glue for basket and motor system provides perfect couplingCurve memory Nomex spider for consistent, reliable performanceHigh energy neodymium magnet tweeterRHFC, Rotary High Frequency Contourl; adjustable for perfect off-axis dispersion and frequency response, according to the listening positionWoofer size mm (in.): 165 (6.5)Tweeter diaphragm mm (in.): 24 (0.9)Power handling W peak: 210W continuous: 70Impedance: Ω 4Frequency response: Hz 60 ÷ 23kSensitivity: dB SPL 94Woofer Magnet size D·d·h mm (in.) 85 x 32 x 15 (3.35 x 1.26 x 0.6)Woofer Voice coil Ø mm (in.) 25 (1)Tweeter Voice coil Ø mm (in.) 15 (0.6)Tweeter dome - PEIWeight of one component kg (lb.) 1 (2.2)