Dayton Audio RSS460-PR 18" Aluminum Cone Passive Radiator

The Dayton Audio RSS460-PR 18" Aluminum Cone Passive Radiator is a premium component designed to deliver deep, extended low-frequency response in high-performance loudspeaker systems. As part of the acclaimed Reference series, this passive emitter offers an elegant solution for achieving powerful bass without the complexity of a ported enclosure.

Ideal for custom speaker builds, home theatre subwoofers, and professional audio applications, this passive radiator excels in sealed enclosures where it replaces a traditional bass reflex port. It is particularly well-suited to designs requiring precise, low-distortion bass reproduction, such as high-end hi-fi systems or studio monitors. The large 18-inch diameter and substantial displacement volume of 3957.6 cm³ allow it to move significant air, producing authoritative low frequencies down to its resonance frequency of just 14.7 Hz.

Engineered with a rigid aluminium cone and a durable rubber surround, the RSS460-PR ensures controlled, linear excursion for accurate bass response. The cast aluminium basket provides exceptional rigidity and reduces unwanted resonances, while the mechanical Q factor of 5.03 and low mechanical losses contribute to clean, articulate performance. With an equivalent volume of 449 litres and a mounting depth of 157 mm, this passive radiator integrates seamlessly into large enclosures. Its eight mounting holes and 424 mm cutout diameter simplify installation, making it a robust choice for serious audio enthusiasts seeking uncompromising low-end extension.