The ESB 3.69 is an oval midbass driver from the 3000 Series, designed to bring a balanced and full sound to rear deck or door installations. These 6x9 inch speakers handle a nominal power of 120 W and can reach a peak of 240 W, operating at a 4 Ohm impedance with a sensitivity of 88.5 dB. They cover a frequency range from 55 to 9000 Hz, making them versatile for various music genres in custom car audio builds. To ensure durability and sound quality, the cone is made from waterproof pressed paper, supported by a high-grade ferrite magnet and a fiberglass-reinforced ABS basket. The Perbunan® rubber surround provides high damping for a single wave, while the 25 mm voice coil features an aluminum support and double-layer copper wire winding with an aluminum core. With a mounting diameter of 148 x 215 mm and a depth of 72 mm, these drivers fit comfortably into standard oval slots while providing the structural rigidity needed for clear audio reproduction.