Purifi PTT5.25X04-NFA-01 standard | Fs 29 Hz, 84.3 dB, Qts 0.240 | LoudspeakerLab

Purifi PTT5.25X04-NFA-01 standard measurements on LoudspeakerLab. 84.3 dB sensitivity. Fs 29 Hz. Qts 0.240. Evidence grade B (63.0/100).

Preview

Thiele-Small parameters

Fs: 29 Hz; Qts: 0.240; Qes: 0.250; Qms: 6.500; Vas: 13.00 L; Sd: 84.9 cm²; Re: 3.60 Ω; Le: 0.39 mH; Sensitivity: 84.3 dB; Nominal Z: 4.3 Ω; Measured range: 20-18625 Hz

Driver quality scores

On-axis flatness 68 · DI tracking 71 · DI smoothness 72 · THD 99 · Composite 76

Usable passband

Scored passband 71 Hz–2.5 kHz

Measurement coverage

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

Recommended enclosure

Vented ~4.2 L · Fb 53 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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