ESB Audio 4.165 6.5"/165 mm Woofer (pair)

ESB Audio 4.165 6.5"/165 mm Woofer (pair)

Main Features

• CNC-machined pole piece in ultra-low carbon steel, designed with magnetic analysis software (FEM). Cold-formed from a single piece, the perfect geometry produces an extra concentration of magnetic force just in front of the voice coil, focusing magnetic force where it is needed.
• Y35 Ferrite magnet motor optimized with FEA simulation to ensure a perfectly symmetrical magnetic flux in both directions of cone movement. The metallic parts of the motor are CNC machined from solid, refined material to achieve maximum linearity of the magnetic flux and minimum magnetic losses. This reduces distortion at high power levels.
• Die-cast aluminum alloy basket. This structural design provides excellent rigidity and minimum resistance to airflow movement without altering the sound quality. The casting of this aluminum basket follows strict procedures to ensure compliance and help maintain consistent casting quality.
• CNC-machined pole plate in ultra-low carbon steel. This type of manufacturing process ensures perfect flatness, so it rests perfectly on the magnet without reducing the critical magnetic flux.
• Large aluminum copper-clad vented voice coil handles very high power while reproducing music with extreme realism and high dynamics. The copper-clad aluminum wire voice coil is very lightweight and has excellent heat dissipation/capacity.
• Long fiber, unbleached cellulose cone with special external treatment makes this material a perfect combination of lightweight, rigidity, and internal damping.
• Edge suspension made of soft nitrile rubber, UV resistant and insensitive to temperature changes, to maintain the superior acoustic characteristics of this speaker over time. The special edge design ensures perfect and free front and rear movement.
• High-quality protective stainless steel grille.
• CNC grille (optional)