Dayton Audio SD215A-88 8" DVC Subwoofer

The Dayton Audio SD215A-88 8" Subwoofer is a high-quality audio component engineered to deliver deep, accurate low-frequency reproduction for discerning listeners. This subwoofer is ideal for use in custom home theatre systems, hi-fi stereo setups, or sealed and ported enclosure designs where precise bass response is paramount. Whether you are upgrading an existing system or building a new speaker from scratch, this driver provides a solid foundation for impactful, musical low end.

Technically, the SD215A-88 features a treated paper cone that offers a balanced, natural sound with excellent damping characteristics, while the copper voice coil ensures efficient power handling and low distortion. With a total Q factor (Qts) of 0.39, it is well-suited for both sealed and vented enclosures, offering flexibility in design. The subwoofer boasts a maximum linear excursion (Xmax) of 6 mm and a displacement volume (Vd) of 125.2, enabling it to move significant air for its size. Sensitivity is rated at 85.9 dB (SPL 1m/2.83V), and the DC resistance (Re) is 3.2 ohms. The mechanical (Qms) and electromagnetic (Qes) Q factors are 3.1 and 0.45 respectively, with a voice coil inductance (Le) of 1.16 mH. The nominal diameter is 203.2 mm (8 inches), with a mounting depth of 95 mm and a cut-out diameter of 18 mm, secured by five mounting holes.

This subwoofer combines robust construction with refined performance, making it a reliable choice for achieving clean, authoritative bass in a variety of audio applications.