Beyma 12MC500 (8 Ohm) standard measurements on LoudspeakerLab. 96.5 dB sensitivity. Fs 57 Hz. Qts 0.340. Evidence grade C (47.0/100).
Fs: 57 Hz; Qts: 0.340; Qes: 0.350; Qms: 7.800; Vas: 57.00 L; Sd: 550.0 cm²; Re: 5.60 Ω; Le: 0.70 mH; Sensitivity: 96.5 dB; Nominal Z: 7.3 Ω; Measured range: 20-19710 Hz
On-axis flatness 47
Scored passband 87 Hz–2.6 kHz
Spec-sheet profiles
Vented ~33.1 L · Fb 74 Hz
LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.