Radiator Pasiv Purifi PTT6.5PR-NF1-01

The PTT6.5PR-NF1-01 is a 6.5” high-performance passive radiator featuring PURIFI ‘ s research-based technologies, including the Natural Surround and a cone made from a proprietary fiber mix.

Highlights

• A whole new take on passive radiator design
• PURIFI ’s Natural Surround
• Bimax spider
• Engineered and manufactured in Denmark
• High linear excursion limit
• Tunable mass

Product Details

PURIFI PTT6.5PR-NF1-01 passive radiator

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 passive radiators from PURIFI are the most high-end passive radiators available

The challenge 

Loudspeaker drivers are known to add a large, if not the largest, amount of distortion on 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 by a large degree.

A whole new take on passive radiator design

PURIFI developed mathematical models for the suspension, cone, and surround. These models allowed for the optimization of different distortion mechanisms separately. The result makes that the PTT6.5PR-NF1-01 is a perfect passive radiator to accompany the PTT6.5W04 and PTT6.5W08 long-stroke bass-midwoofers.