Dayton Audio RSS390-PR 15" Aluminum Cone Passive Radiator

The Dayton Audio RSS390-PR 15" aluminium cone passive radiator is a premium solution for audiophiles and system builders seeking to extend low-frequency response without the complexity of a ported enclosure. Designed as a passive emitter, it replaces a traditional bass reflex port, allowing for deeper, more controlled bass in compact sealed cabinets. This makes it ideal for high-end home theatre subwoofers, two-channel stereo systems, or custom car audio installations where space is at a premium but performance cannot be compromised.

Engineered as part of Dayton Audio's renowned Reference series, this passive radiator features a rigid aluminium cone and a durable rubber surround, which together minimise distortion and ensure precise cone movement even at high excursion levels. With an impressive linear excursion (Xmax) of 30 mm and a displacement volume (Vd) of 2488.8 cm³, it can move substantial air for powerful, room-filling bass. The cast aluminium frame provides exceptional rigidity and reduces unwanted resonances, while the eight mounting holes and 355.8 mm cutout diameter simplify integration into your enclosure. The mechanical Q (Qms) of 4.07 indicates controlled damping, contributing to clean, articulate low-end reproduction. Whether you are upgrading an existing design or building from scratch, the RSS390-PR delivers the deep, authoritative bass extension that transforms a listening experience.