Dayton Audio UMII15-22 standard measurements on LoudspeakerLab. 88.8 dB sensitivity. Fs 29 Hz. Qts 0.700. Evidence grade C+ (56.8/100).
Fs: 29 Hz; Qts: 0.700; Qes: 1.000; Qms: 2.340; Vas: 96.00 L; Sd: 791.0 cm²; Re: 4.20 Ω; Le: 0.70 mH; Sensitivity: 88.8 dB; Nominal Z: 4.8 Ω; Measured range: 5-20000 Hz
On-axis flatness 73 · DI tracking 100 · DI smoothness 100
Scored passband 44 Hz–282 Hz
Spec-sheet profiles · Off-axis H/V response data available.
Sealed ~147.0 L
LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.