Purifi PTT4.0X04-NFC-01 standard | Fs 38 Hz, 83.6 dB, Qts 0.300 | LoudspeakerLab

Purifi PTT4.0X04-NFC-01 standard measurements on LoudspeakerLab. 83.6 dB sensitivity. Fs 38 Hz. Qts 0.300. Evidence grade C (47.0/100).

Preview

Thiele-Small parameters

Fs: 38 Hz; Qts: 0.300; Qes: 0.320; Qms: 4.500; Vas: 6.40 L; Sd: 56.7 cm²; Re: 3.80 Ω; Le: 0.38 mH; Sensitivity: 83.6 dB; Nominal Z: 4.3 Ω; Measured range: 20-20000 Hz

Driver quality scores

On-axis flatness 67

Usable passband

Scored passband 77 Hz–1.5 kHz

Measurement coverage

Spec-sheet profiles

Recommended enclosure

Vented ~3.0 L · Fb 55 Hz

Measurement profiles

Where to buy

Measurement quality

LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

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