ESK-165.5 | Hertz 6.5" 300W 2-Way Component Speaker SystemFEATURES: EV 165.5 165mm (6.5") Woofer ET 26.5 26mm (1") Neodymium Tweeter CX 200.5 Crossover LP/HP at 3kHz - 6/12 dB Grille and accessories included Imedance: 4-ohm Sensitivity 93.5 dB SPLET 26.5: Tetolon dome; extremely light and well damped for a smooth and extended high frequency response. CCAW (Copper Clad Aluminum Wire) Ultra light ferrofluid-cooled mobile voice coil. High energy neodymium magnet. Low Carbon content plates for maximum magnetic permeability and high heat dissipation. Damping material; controlling acoustic resonances insuring clear, high frequency tones. Acoustic phase plug, optimizing SPL linearity and off-axis high frequency response.EV 165L.5 V-coneĀ® for best off-axis response and clear mid-high frequency detail. Water-repellent treated paper cone; butyl rubber surround. Pure copper voice coil, wound on aluminium former, for exceptional thermal and mechanical capacity. Large motor assembly for excellent control of voice coil. Low carbon content plates for maximum magnetic permeability and high heat dissipation. Rubber magnet cover provides damping to the basket and motor structure and protects from abrasions and damages. DIN size basket coated with scratch-proof, corrosive-resistant material. Tin-plated, high current terminals. Silver-plated lead wires, for maximum reliability and conductivity. Epoxy glue for basket and motor system provides perfect coupling. Curve memory Nomex spider for consistent, reliable performance. Mounting Depth: 2.56"