Dayton Audio UMII8-22 standard measurements on LoudspeakerLab. 82.9 dB sensitivity. Fs 46 Hz. Qts 0.750. Evidence grade C+ (56.8/100).
Fs: 46 Hz; Qts: 0.750; Qes: 0.990; Qms: 3.100; Vas: 8.40 L; Sd: 200.0 cm²; Re: 3.90 Ω; Le: 0.75 mH; Sensitivity: 82.9 dB; Nominal Z: 4.7 Ω; Measured range: 5-20000 Hz
On-axis flatness 61 · DI tracking 67 · DI smoothness 14
Scored passband 67 Hz–690 Hz
Spec-sheet profiles · Off-axis H/V response data available.
Sealed ~13.9 L
LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.