Dayton Audio RS225P-4A 8" Reference Paper Woofer

The Dayton Audio RS225P-4A is an 8-inch reference paper woofer designed to deliver exceptional clarity and natural sound reproduction across the bass and midrange frequencies. With a 4-ohm impedance and a robust paper/kevlar composite cone, this driver offers a perfect balance of rigidity and controlled damping, ensuring articulate, distortion-free audio that brings life to any project.

This woofer is ideally suited for high-fidelity loudspeaker designs, including two-way or three-way systems where precise midbass performance is critical. It excels in sealed or ported enclosures, making it a versatile choice for audiophiles and DIY enthusiasts seeking to build bookshelf speakers, floor-standing towers, or even subwoofer applications requiring clean, detailed low-end response. Its linear excursion and sensitivity also make it suitable for home theatre setups.

Technically, the RS225P-4A features a total Q factor (Qts) of 0.38, combining a mechanical Q (Qms) of 1.85 and an electromagnetic Q (Qes) of 0.48 for optimal transient response. With a maximum linear excursion (Xmax) of 6 mm and a displacement volume (Vd) of 128.2, it moves ample air for impactful bass. The 92.9 dB sensitivity (1m/2.83V) ensures efficient power handling, while a DC resistance (Re) of 3.3 ohms and low voice coil inductance (Le) of 0.51 mH contribute to extended high-frequency response. The woofer’s 184 mm cutout diameter and 84 mm depth facilitate straightforward installation.

In summary, the Dayton Audio RS225P-4A combines premium materials with carefully engineered parameters to deliver a natural, detailed soundstage. Whether for critical listening or custom builds, this woofer offers reliable performance and exceptional value.