PURIFI PTT6.5PR Passive Radiator

The PURIFI PTT6.5PR-NF2-02 Passive Radiator is a precision-engineered component designed to deliver deep, controlled bass extension from compact enclosures. By replacing a conventional port, this passive radiator eliminates chuffing and resonance artefacts, offering a cleaner, more natural low-frequency response that integrates seamlessly with active drivers.

Ideal for use in high-fidelity loudspeakers, subwoofer systems, and bespoke audio projects, this passive radiator excels where space is limited but bass performance cannot be compromised. It is particularly suited to sealed or small-vented cabinets, enabling designers to achieve authoritative low-end output without the bulk of a traditional reflex port.

Technically, the PTT6.5PR-NF2-02 features a 165.1 mm nominal diameter with a displacement volume of 199.5 cm³, ensuring substantial air movement. Its proprietary fibre blend membrane and rubber surround deliver low distortion and high linearity, while the cast aluminium basket provides rigid, resonance-free support. The mechanical Q (Qms) of 10.9 and equivalent volume (Vas) of 26.2 litres allow precise tuning, and the 149 mm cut-out diameter with six mounting holes simplifies integration.

Combining PURIFI’s advanced materials science with meticulous engineering, this passive radiator is the definitive choice for audiophiles and designers seeking uncompromising bass quality in a compact form factor.