Dayton Audio DSA90-PR 3" Designer Series Aluminum Cone Passive Radiator

The Dayton Audio DSA90-PR 3" Designer Series Aluminum Cone Passive Radiator is a premium passive emitter engineered to elevate the low-frequency performance of compact speaker systems. Designed to complement small sealed enclosures, this passive radiator offers a refined solution for audio enthusiasts seeking deeper, more impactful bass without the need for a larger cabinet or additional active driver. Its aluminium cone and rubber surround ensure both durability and precise acoustic behaviour, making it an ideal choice for custom loudspeaker projects, multimedia speakers, or portable audio designs where space is at a premium.

Technically, the DSA90-PR boasts a resonance frequency of 43.7 Hz and an equivalent volume of 3.5113 litres, allowing it to integrate seamlessly with suitable enclosures. With a maximum linear excursion of 4 mm and a mechanical Q factor of 5.72, it delivers controlled, articulate low-end extension. The 3-inch nominal diameter (76.2 mm) is paired with a steel basket and a rubber surround for long-term reliability. Installation is straightforward thanks to a 70.1 mm cutout diameter and four mounting holes on an 83.1 mm bolt circle, while the overall depth of 21.8 mm ensures a slim profile. This passive radiator is a superb upgrade for achieving refined bass response in compact audio systems.