Scan-Speak 18WU/8747T00 standard measurements on LoudspeakerLab. 85.5 dB sensitivity. Fs 36 Hz. Qts 0.380. Evidence grade C+ (57.0/100).
Fs: 36 Hz; Qts: 0.380; Qes: 0.430; Qms: 3.720; Vas: 36.20 L; Sd: 154.0 cm²; Re: 5.80 Ω; Le: 0.60 mH; Sensitivity: 85.5 dB; Nominal Z: 8.0 Ω; Measured range: 21-18250 Hz
On-axis flatness 68 · DI tracking 23 · DI smoothness 28
Scored passband 62 Hz–3.5 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~26.0 L · Fb 42 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.