Scan-Speak 18W/4424G00 standard measurements on LoudspeakerLab. 91.0 dB sensitivity. Fs 49 Hz. Qts 0.380. Evidence grade C+ (57.0/100).
Fs: 49 Hz; Qts: 0.380; Qes: 0.420; Qms: 4.570; Vas: 24.10 L; Sd: 137.0 cm²; Re: 3.20 Ω; Le: 0.47 mH; Sensitivity: 91.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-19316 Hz
On-axis flatness 82 · DI tracking 0 · DI smoothness 22
Scored passband 85 Hz–8.5 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~17.3 L · Fb 57 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.