SB Acoustics SB12PAC-00 Passive Radiator

The SB12PAC-00 Aluminum Passive Radiator from SB Acoustics is a high-quality component engineered to elevate the low-frequency performance of your speaker system. Designed to complement a small sealed enclosure, this passive radiator offers an efficient solution for achieving deeper, more impactful bass without the need for a larger cabinet or an additional active driver. It is ideal for compact audio projects such as bookshelf speakers, subwoofer systems, or custom portable designs where space is at a premium.

Technically, the SB12PAC-00 boasts a resonance frequency of 33 Hz and a maximum linear excursion (Xmax) of 9 mm, allowing it to move substantial air for its size. The moving mass with air load (Mms) is 19.2 grams, while the mechanical compliance of the suspension (Cms) measures 1.21 mm/N, ensuring precise control and low distortion. With a mechanical Q factor (Qms) of 12.4 and a mechanical loss factor (Rms) of 0.32, this radiator is finely tuned for optimal damping and transient response. The nominal diameter is 107 mm, and the effective cone area (Sd) is 50 cm², providing a solid foundation for bass reinforcement.

This passive radiator is a superb choice for audiophiles and DIY enthusiasts seeking to enhance their system's low-end output with minimal complexity. Its robust aluminium cone and carefully engineered suspension deliver reliable performance, making it a valuable addition to any high-fidelity audio project.