PURIFI PTT8.0PR-NA2-01 Passive Radiator

The PURIFI PTT8.0PR-NA2-01 is an 8-inch ultra low distortion passive radiator, engineered to elevate the performance of compact loudspeaker systems. As a passive emitter, it replaces a conventional port, delivering deep, articulate bass without the turbulence and noise often associated with ported enclosures. This makes it an ideal choice for high-fidelity audio enthusiasts and custom speaker builders seeking pristine low-frequency reproduction in space-constrained designs.

This passive radiator excels in applications where a sealed or ported enclosure would compromise either bass extension or clarity. It is particularly well-suited for use in bookshelf speakers, subwoofer systems, and high-end automotive audio installations. By pairing it with an active driver, you can achieve exceptionally clean, room-filling bass that remains tight and controlled, even at higher listening levels.

Technically, the PTT8.0PR-NA2-01 features a rigid aluminium cone with a surface area of 235.1 cm², ensuring minimal flexing and distortion. Its suspension offers a mechanical compliance of 0.93 mm/N and a mechanical Q of 9.4, while the moving mass with air load is 132 grams. With a resonance frequency of just 14 Hz and a maximum linear excursion of 7.5 mm, this radiator is capable of producing deep, accurate bass. The equivalent volume is 73 litres, and the overall depth is 62.5 mm, with a nominal diameter of 203.2 mm and a cut-out diameter of 193 mm.

In summary, the PURIFI PTT8.0PR-NA2-01 is a premium passive radiator that combines advanced engineering with practical design, offering audiophiles a reliable path to exceptional low-frequency performance in compact enclosures.