The ESB 3.10D4 is a 10-inch car subwoofer from the 3000 Series, designed for those who prefer controlled and accurate low-frequency reproduction that blends seamlessly with the rest of the vehicle's audio stage. It handles 300 W RMS at 4 Ohm, with a maximum transient power of 600 W, and features a dual voice coil configuration of 4+4 Ohm. This flexibility allows you to wire the coils in series for an 8-ohm load or in parallel for a 2-ohm load, depending on your amplifier's requirements. Built for durability and precision, the speaker uses a non-pressed cellulose pulp cone treated to resist water, supported by a Conex® spider and a long-throw foam surround. A double Y-35 ferrite magnet and a four-layer DVC on Kapton® support ensure stability, while the high-rigidity engineering basket maintains structural integrity. With a sensitivity of 91 dB and a frequency response ranging from 33 Hz to 400 Hz, it delivers deep bass without needing an oversized setup. Because this model has low requirements for acoustic enclosure volume, it fits comfortably into compact cars where space is limited. You can install it in either a sealed enclosure for tighter sound or a ported design if you prefer more extension in the low frequencies.