PURIFI PTT6.5M04-NFA-01

PURIFI PTT6.5M04-NFA-01 Ultra Low Distortion Midrange

Dedicated midrange driver with enhanced efficiency. Negligible force factor modulation. Ultra-low magnetic hysteresis distortion. Utilizes PURIFI’s neutral surround technology.

The PTT6.5M04-NFA-01 has been optimized for Midrange use and achieves higher sensitivity as compared to the X- and W- versions of PTT6.5 product family. Furthermore, the M-version has a slight redesign chassis. Please observe the 2D drawings in the datasheet. The driver achieves astounding performance with ultra-clean distortion specifications.

PURIFI is a fresh company that designs and manufactures extremely high-performance transducers and amplifier modules. Don’t let the freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performances degrading aspects for both amplifiers and transducers. Thanks to this understanding the PTT6.5W08-NFA-01 is the most refined bass-mid woofer from our woofer category.

Besides this 4 ohm version, there is also an 8 ohm version, a long stroke version (PTT6.5M08-NFA-01), and a 6,5" passive radiator available.

Loudspeaker drivers are known to add a large, if not the largest, amount of distortion in an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance to a large degree.

PURIFI developed mathematical models for the motor system, suspension, cone, and surround. These models allowed for the optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT6.5M04-NFA-01 is a compact 6.5” driver that parallels or even surpasses the bass performance of a low excursion, large surface driver, while it also excels in midrange performance.