Dayton Audio MB620-8 standard measurements on LoudspeakerLab. 89.0 dB sensitivity. Fs 104 Hz. Qts 0.593. Evidence grade C+ (56.8/100).
Fs: 104 Hz; Qts: 0.593; Qes: 0.688; Qms: 4.290; Vas: 6.77 L; Sd: 132.7 cm²; Re: 5.47 Ω; Le: 0.93 mH; Sensitivity: 89.0 dB; Nominal Z: 6.2 Ω; Measured range: 20-19670 Hz
On-axis flatness 70 · DI tracking 74 · DI smoothness 49
Scored passband 156 Hz–3.9 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~13.8 L · Fb 83 Hz
LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.