The ESB Tremila 3.90 is a 3.5-inch cone midrange speaker designed to bring clarity and balance to your vehicle's audio system. It handles a nominal power of 60 watts and can manage transients up to 120 watts, operating within a frequency range from 150 Hz to 7 kHz with a sensitivity of 91.5 dB. Its construction focuses on durability and acoustic precision, featuring a pressed paper cone with a waterproof treatment to withstand humidity. The speaker is built around an ABS plastic basket reinforced with fiberglass and utilizes a twin symmetrical wave rubber surround made of Perbunan®. Inside, a high-grade ferrite magnet drives a 20 mm voice coil, which consists of an aluminum support with double-layer copper wire winding and an aluminum core, ensuring reliable performance for listeners seeking a detailed midrange experience.