Purifi PTT4.0M08-NFC-01 standard | Fs 48 Hz, 86.0 dB, Qts 0.310 | LoudspeakerLab

Purifi PTT4.0M08-NFC-01 standard measurements on LoudspeakerLab. 86.0 dB sensitivity. Fs 48 Hz. Qts 0.310. Evidence grade B (63.0/100).

Preview

Thiele-Small parameters

Fs: 48 Hz; Qts: 0.310; Qes: 0.330; Qms: 5.000; Vas: 5.30 L; Sd: 56.7 cm²; Re: 5.80 Ω; Le: 0.37 mH; Sensitivity: 86.0 dB; Nominal Z: 5.7 Ω; Measured range: 20-18625 Hz

Driver quality scores

On-axis flatness 56 · DI tracking 57 · DI smoothness 46 · THD 96 · Composite 63

Usable passband

Scored passband 90 Hz–4.5 kHz

Measurement coverage

Distortion measurements · Spec-sheet profiles · Off-axis H/V response data available.

Recommended enclosure

Vented ~2.6 L · Fb 68 Hz

Measurement profiles

Where to buy

Measurement quality

LoudspeakerLab evidence grade: B (63.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

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