Dayton Audio DS115-PR 4" Designer Series Passive Radiator

The Dayton Audio DS115-PR 4" Designer Series Passive Radiator is a superb choice for audio enthusiasts seeking to elevate their loudspeaker designs. This passive emitter allows you to achieve deep, extended bass response without the complexities of a ported enclosure, making it an elegant solution for compact or sealed cabinet projects. By replacing a traditional bass reflex port, it eliminates chuffing noise and reduces enclosure size while maintaining impressive low-frequency output.

Ideal for use in bookshelf speakers, subwoofer systems, or custom audio builds, the DS115-PR excels in applications where space is at a premium but bass performance cannot be compromised. It pairs seamlessly with active drivers to create a powerful, balanced soundstage, whether in home theatre setups, hi-fi stereo systems, or portable speaker designs. Its paper cone and rubber surround ensure natural, articulate bass reproduction with minimal distortion.

Technically, this passive radiator boasts a resonance frequency (Fs) of 29.3 Hz and an equivalent volume (Vas) of 9.3445 litres, enabling deep extension. With a maximum linear excursion (Xmax) of 6 mm and a mechanical Q (Qms) of 3.66, it offers controlled, precise movement. The steel frame and 115.6 mm overall diameter, along with a 93.7 mm cut-out and four mounting holes on a 106.9 mm bolt circle, ensure straightforward integration. A depth of 29.7 mm allows for slim enclosures.

In summary, the DS115-PR delivers exceptional bass enhancement with reliable Dayton Audio engineering, perfect for refined speaker projects.