ETON 4-218 ARCOSIA Bass-mid Woofer

The ETON 4-218 ARCOSIA Bass-mid Woofer represents a significant step forward in high-fidelity audio reproduction, engineered for discerning listeners who demand precision and clarity from their sound systems. This 4-inch driver is ideally suited for use in high-end car audio installations, home theatre setups, or dedicated two-way monitor systems where accurate mid-bass and lower midrange performance is critical. Whether you are building a custom speaker enclosure or upgrading an existing design, this woofer excels in delivering tight, controlled low frequencies that bring music and film soundtracks to life.

Technically, the ARCOSIA is defined by its carefully optimised parameters. With a total Q factor (Qts) of 0.39, it offers a well-damped response that combines excellent transient speed with extended low-frequency extension. The 5.8-ohm DC resistance (Re) and 0.35 mH voice coil inductance (Le) ensure efficient power handling and minimal distortion. A maximum linear excursion (Xmax) of 4 mm allows for dynamic playback without compression, while the 87 dB sensitivity (SPL at 1m/2.83V) ensures compatibility with a wide range of amplifiers. The copper voice coil wire and robust mechanical design, featuring a mechanical Q (Qms) of 6.11 and an electromagnetic Q (Qes) of 0.42, guarantee reliable performance and longevity. With a nominal diameter of 101.6 mm and a mounting cut-out diameter of 96 mm, this woofer is a precise and powerful choice for any serious audio enthusiast.