Dayton Audio RS225-8 8" Reference Woofer

The Dayton Audio RS225-8 8" Reference Woofer is a premium-grade driver engineered to deliver deep, accurate bass and a remarkably clear midrange for discerning audio enthusiasts. As part of the renowned Reference Series, this woofer sets a high standard for low-distortion performance in both home and professional audio applications.

This versatile 8-inch woofer excels in a wide range of uses, from high-fidelity two-way loudspeakers and multi-channel home theatre systems to compact subwoofer designs and studio monitor builds. Its balanced performance makes it an ideal choice for audiophiles seeking to upgrade existing cabinets or construct reference-quality enclosures from scratch. Whether you are designing a sealed or ported system, the RS225-8 provides the foundation for articulate, controlled bass reproduction.

Technically, the woofer features a rigid aluminium cone that minimises breakup and ensures piston-like behaviour across its operating range. With a generous 7mm linear excursion (Xmax) and a displacement volume (Vd) of 149.7, it moves substantial air for its size. The copper voice coil wound on a non-conducting former offers a low inductance (Le) of 0.86 mH, reducing distortion and improving high-frequency extension. Key Thiele-Small parameters include a Qts of 0.38, Qes of 0.51, and Qms of 1.46, indicating excellent transient response and suitability for both sealed and vented alignments. Sensitivity is rated at 86.8 dB (2.83V/1m), while the 6.5-ohm DC resistance (Re) ensures compatibility with typical amplifier loads. The woofer requires a 184mm cutout and has a mounting depth of 89mm.

In summary, the Dayton Audio RS225-8 combines advanced engineering with robust construction to deliver a reference-grade bass and midrange driver that meets the demands of the most critical listening environments.