PURIFI PTT6.5W08-NFA-01 Bass-midwoofer

The PURIFI PTT6.5W08-NFA-01 6.5-inch Ultra Low Distortion Driver represents a significant leap forward in transducer engineering, delivering exceptionally clean bass and midrange performance for the most discerning audio enthusiasts. This 4-ohm driver is purpose-built for high-fidelity audio systems where accuracy and transparency are paramount.

Ideal for use in premium two-way loudspeakers, compact subwoofer systems, or as a dedicated mid-bass driver in multi-way designs, this unit excels in both domestic hi-fi and professional monitoring applications. Its remarkable linearity ensures that every nuance of the recording is reproduced with stunning realism, from the deepest bass notes to the critical upper midrange frequencies.

Technically, the driver boasts an advanced motor system with an aluminium voice coil and a total Q factor of 0.33, offering excellent damping and control. With a sensitivity of 87.9 dB SPL at 1 metre for 2.83V and a maximum linear excursion (Xmax) of 5.9 mm, it combines efficiency with substantial output capability. The low voice coil inductance of 0.48 mH and minimal mechanical losses (Rms 0.9) contribute to its ultra-low distortion characteristics, while the 78.3 cm³ displacement volume (Vd) ensures authoritative bass reproduction. The 165.1 mm nominal diameter fits a 145 mm cutout, secured by six mounting holes on a 5.1-inch bolt circle.

This driver is the definitive choice for those who refuse to compromise on sonic purity, offering a level of performance that sets a new benchmark in its class.