PURIFI PTT5.25PR-NF2-01 Passive Radiator

The PURIFI PTT5.25PR-NF2-01 is a 5.25-inch ultra low distortion passive radiator, engineered to elevate your audio system’s bass performance without the need for a larger enclosure. As a passive emitter, it works in tandem with an active driver to extend low-frequency response, delivering deep, controlled bass that adds weight and realism to music, film, and gaming soundtracks. This makes it an ideal choice for compact speaker designs where space is at a premium, such as bookshelf speakers, soundbars, or custom automotive installations, where traditional ported or larger sealed boxes are impractical.

Technically, this passive radiator boasts a resonance frequency of just 20 Hz, enabling impressive sub-bass extension. Its proprietary fibre blend cone, with an effective surface area of 84.9 cm², ensures stiffness and lightness for minimal distortion, while the precision suspension offers a mechanical compliance of 1.28 mm/N. The maximum linear excursion of 7 mm allows for high output levels, and the mechanical Q of 9.9 ensures tight, accurate control. With a mounting hole diameter of 121 mm and a depth of 38.5 mm, it integrates seamlessly into compact designs. The PURIFI PTT5.25PR-NF2-01 is the definitive solution for audiophiles seeking pristine, low-distortion bass from a space-efficient passive radiator.