Scan-Speak 18W/4531G00 standard measurements on LoudspeakerLab. 90.0 dB sensitivity. Fs 33 Hz. Qts 0.350. Evidence grade C+ (57.0/100).
Fs: 33 Hz; Qts: 0.350; Qes: 0.380; Qms: 5.200; Vas: 41.90 L; Sd: 150.0 cm²; Re: 3.40 Ω; Le: 0.30 mH; Sensitivity: 90.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-20000 Hz
On-axis flatness 73 · DI tracking 0 · DI smoothness 40
Scored passband 62 Hz–7.9 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~25.9 L · Fb 41 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.