PURIFI PTT4.0X08-NAC-03 Woofer

The PURIFI PTT4.0X08-NAC-03 4" Ultra Low Distortion Extended Woofer represents a significant advancement in compact driver engineering, delivering exceptionally clean mid-bass reproduction with vanishingly low distortion. Designed for discerning audio enthusiasts and professional system builders, this transducer excels in applications where space is at a premium but sonic performance cannot be compromised. It is ideally suited for use in high-fidelity satellite-subwoofer configurations, near-field monitoring systems, and premium automotive audio installations where precise, articulate low-frequency response is essential.

Technically, this driver features a linear excursion of 6.85 mm, enabling impressive output capability from its compact 101.6 mm nominal diameter. The total Q factor of 0.39, combined with a resonance frequency of 43 Hz and a sensitivity of 81.8 dB SPL at 2.83V/1m, allows for versatile enclosure design, including sealed and vented alignments. The moving mass of 11.9 grams and a DC resistance of 6.5 ohms contribute to its controlled, accurate behaviour. With a 30 mm voice coil and a mechanical compliance of 1.16 mm/N, the PTT4.0X08-NAC-03 ensures minimal distortion and exceptional transient response. This woofer is the definitive choice for those seeking reference-grade mid-bass performance in a compact form factor.