ESB Audio 3.90 3000 Series 90mm Cone Midrange Speaker (pair)

ESB Audio 3.90 3.5"/90 mm Cone Midrange Speaker (pair)

Main Features

• ABS basket reinforced with fiberglass. The basket is designed to achieve maximum torsional rigidity (flexural strength) while offering minimal resistance to air passage.
• Pressed paper cone with water-resistant treatment. It is widely recognized that cones made of paper offer an ideal combination of lightness, rigidity, and the ability of the cones to reduce unwanted vibrations (read: distortion).
• Double symmetrical wave rubber surround. The Perbunan® rubber surround is much more stable with respect to temperature changes than ordinary rubber.
• The 20 mm voice coil uses an aluminum former with a double-layer winding technique with copper wire on an aluminum core.
• High-quality ferrite magnet, a magnet type with significantly higher performance than "ordinary" magnets.