Dayton Audio DS315-PR 12" Passive Radiator

The Dayton Audio DS315-PR 12" Passive Radiator is a meticulously engineered component designed to elevate your loudspeaker system’s low-frequency performance. By replacing a conventional port, this passive radiator delivers deep, articulate bass without the turbulence or chuffing often associated with ported enclosures, making it an ideal choice for audiophiles and DIY enthusiasts seeking cleaner, more controlled sound reproduction.

This versatile unit excels in compact speaker designs where port length would be impractical, such as bookshelf monitors, subwoofer systems, or custom automotive installations. Its ability to tune the enclosure’s bass response allows for precise alignment with active drivers, ensuring seamless integration and extended low-end output even in smaller cabinets.

Technically, the DS315-PR boasts a treated paper cone for stiffness and low mass, coupled with a rubber surround for long-lasting durability and linear excursion. With a maximum linear excursion (Xmax) of 10mm and a displacement volume (Vd) of 48 litres, it moves substantial air to produce authoritative bass. The steel basket provides a rigid foundation, while the dual voice coil design offers flexible wiring options. Key parameters include a mechanical Q (Qms) of 3 and an equivalent volume (Vas) of 147.3 litres, facilitating accurate system tuning. The 304.8mm nominal diameter fits a 272mm cutout, secured by five mounting holes, with an overall depth of 89mm.

Ideal for upgrading existing designs or building from scratch, the Dayton Audio DS315-PR delivers refined, impactful bass with the convenience of a passive radiator solution.