Dayton Audio Odeum Apollo 15MB500N-8 Bass-midwoofer

The Dayton Audio Odeum Apollo 15MB500N-8 Bass-midwoofer is a high-performance driver engineered to deliver exceptional clarity and authority across the bass and midrange frequencies. As part of the esteemed Odeum Apollo series, this 15-inch transducer combines robust construction with refined acoustic design, making it an ideal choice for audiophiles and custom loudspeaker builders seeking natural, uncoloured sound reproduction.

This versatile woofer excels in vented enclosure designs, where its high sensitivity and controlled parameters allow for deep, articulate bass extension without sacrificing midrange detail. Whether deployed in a dedicated subwoofer system, a two-way monitor, or a multi-way home theatre setup, the 15MB500N-8 provides the dynamic headroom and low distortion required for both critical listening and high-impact cinematic applications. Its generous linear excursion of 6.55 mm ensures clean output at higher volumes, while the treated paper cone delivers a warm, organic tonality that integrates seamlessly with other drivers.

Technically, the driver features a copper voice coil with a DC resistance of 5.8 ohms and an inductance of just 0.14 mH, contributing to its impressive 98.6 dB sensitivity (1m/2.83V). The low total Q factor of 0.33, combined with a high mechanical Q of 10.47 and an electromagnetic Q of 0.34, indicates excellent damping and transient response. The 391.7 mm frame requires a cutout diameter of 352.8 mm and mounts with eight screws, while the 168.9 mm depth accommodates compact enclosures. With its robust motor system and natural-sounding cone, this bass-midwoofer represents a superb foundation for high-fidelity loudspeaker projects.