Beyma 12MCS500 (8 Ohm) standard measurements on LoudspeakerLab. 96.5 dB sensitivity. Fs 57 Hz. Qts 0.360. Evidence grade C (47.0/100).
Fs: 57 Hz; Qts: 0.360; Qes: 0.380; Qms: 7.800; Vas: 57.00 L; Sd: 550.0 cm²; Re: 5.60 Ω; Le: 1.10 mH; Sensitivity: 96.5 dB; Nominal Z: 7.5 Ω; Measured range: 20-19470 Hz
On-axis flatness 63
Scored passband 87 Hz–1.8 kHz
Spec-sheet profiles
Vented ~36.9 L · Fb 70 Hz
LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.