Dayton Audio DS90-PR 3" Designer Series Passive Radiator

The Dayton Audio DS90-PR 3" Designer Series Passive Radiator is a meticulously engineered component designed to elevate the low-frequency performance of compact speaker systems. As a passive emitter, it replaces a traditional port in sealed enclosures, delivering deeper, more impactful bass without the chuffing noises associated with vented designs. This 3-inch radiator is an ideal solution for small bookshelf speakers, desktop monitors, or custom portable audio projects where space is at a premium but bass extension remains a priority.

Technically, the DS90-PR boasts a paper cone for a balanced, natural sound character, paired with a durable rubber surround that ensures long-lasting compliance and linear excursion. Its steel basket provides a rigid foundation, while the 42 Hz resonance frequency and 3.5-litre equivalent volume (Vas) allow for seamless integration into compact enclosures. With a maximum linear excursion (Xmax) of 4 mm and a mechanical Q (Qms) of 5.9, this passive radiator offers controlled, distortion-free bass reproduction. The 70.1 mm cutout diameter and four mounting holes simplify installation, making it a straightforward upgrade for DIY enthusiasts and professional designers alike. Whether you are refining a high-fidelity stereo pair or crafting a bespoke Bluetooth speaker, the DS90-PR delivers authoritative low-end extension with the finesse expected from Dayton Audio's Designer Series.