Dayton Audio UMII12-22 standard measurements on LoudspeakerLab. 87.6 dB sensitivity. Fs 31 Hz. Qts 0.560. Evidence grade C+ (56.8/100).
Fs: 31 Hz; Qts: 0.560; Qes: 0.710; Qms: 2.750; Vas: 53.00 L; Sd: 528.0 cm²; Re: 4.20 Ω; Le: 0.66 mH; Sensitivity: 87.6 dB; Nominal Z: 5.0 Ω; Measured range: 5-20000 Hz
On-axis flatness 55 · DI tracking 95 · DI smoothness 89
Scored passband 48 Hz–441 Hz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~91.1 L · Fb 26 Hz
LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.