Purifi PTT4.0X04-NAC-03 standard | Fs 40 Hz, 83.2 dB, Qts 0.310 | LoudspeakerLab

Purifi PTT4.0X04-NAC-03 standard measurements on LoudspeakerLab. 83.2 dB sensitivity. Fs 40 Hz. Qts 0.310. Evidence grade B (63.0/100).

Preview

Thiele-Small parameters

Fs: 40 Hz; Qts: 0.310; Qes: 0.340; Qms: 3.800; Vas: 5.50 L; Sd: 56.7 cm²; Re: 3.80 Ω; Le: 0.38 mH; Sensitivity: 83.2 dB; Nominal Z: 4.1 Ω; Measured range: 20-18625 Hz

Driver quality scores

On-axis flatness 71 · DI tracking 85 · DI smoothness 66 · THD 96 · Composite 80

Usable passband

Scored passband 74 Hz–1.9 kHz

Measurement coverage

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

Recommended enclosure

Vented ~2.7 L · Fb 56 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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