Dayton Audio SIG180-4 standard measurements on LoudspeakerLab. 89.4 dB sensitivity. Fs 40 Hz. Qts 0.380. Evidence grade A- (86.8/100).
Fs: 40 Hz; Qts: 0.380; Qes: 0.410; Qms: 5.190; Vas: 23.22 L; Sd: 143.0 cm²; Re: 3.70 Ω; Le: 0.47 mH; Sensitivity: 89.4 dB; Nominal Z: 4.8 Ω; Measured range: 10-20000 Hz
On-axis flatness 84 · DI tracking 80 · DI smoothness 77
Scored passband 113 Hz–3.0 kHz
Measured profiles · Spec-sheet profiles · Off-axis H/V response data available.
Vented ~16.7 L · Fb 47 Hz
LoudspeakerLab evidence grade: A- (86.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.