SB Acoustics SB34NRX-00 12" Passive Radiator

The SB34NRX-00 12" Passive Radiator from SB Acoustics represents a sophisticated solution for audiophiles seeking to augment low-frequency performance without the complexity of a ported enclosure. Designed to complement sealed cabinet designs, this passive radiator transforms the listening experience by delivering authoritative, room-filling bass that remains tight and controlled. It is ideally suited for high-fidelity home audio systems, custom loudspeaker projects, and subwoofer applications where space is at a premium but deep extension is non-negotiable.

Engineered as part of the acclaimed NRX Norex series, this unit boasts a generous maximum linear excursion (Xmax) of 17 mm, enabling it to move substantial air for profound, articulate low-end reproduction. The mechanical Q (Qms) of 12.1 ensures optimal damping characteristics, while the equivalent volume (Vas) of 182.9 litres and a suspension compliance (Cms) of 0.5 mm/N allow for seamless integration into a variety of sealed enclosures. With a cone area (Sd) of 508 cm² and a nominal diameter of 304.8 mm, the SB34NRX-00 delivers impressive displacement. Whether you are refining a two-channel setup or building a dedicated subwoofer, this passive radiator offers a refined, distortion-free path to deeper bass extension.