The RSS315-PR from Dayton Audio is a 30.4cm diameter passive radiator from the Reference Series range. It will allow you, combined with an active speaker, to enjoy a richer sound in the low frequencies and potentially extend the bandwidth of your speaker.

This one has an excellent quality of manufacture, with a membrane in Anodized Aluminium and a frame in Cast iron, just like the subwoofers of the same range. Thus, they are visually similar and will integrate perfectly together.

Each passive radiator uses the unique SMS (Sandwiched Mass Structure) design to maintain the majority of the mass centered between the suspension and the spider, ensuring good linearity. The mass of the RSS315-PR can also be adjusted to suit most subwoofers, thanks to the weights supplied.