Beyma 8BR40N (8 Ohm) standard measurements on LoudspeakerLab. 94.5 dB sensitivity. Fs 30 Hz. Qts 0.390. Evidence grade C (47.0/100).
Fs: 30 Hz; Qts: 0.390; Qes: 0.480; Qms: 2.100; Vas: 89.10 L; Sd: 220.0 cm²; Re: 5.50 Ω; Le: 0.50 mH; Sensitivity: 94.5 dB; Nominal Z: 6.4 Ω; Measured range: 20-19470 Hz
On-axis flatness 50
Scored passband 64 Hz–1.7 kHz
Spec-sheet profiles
Vented ~67.7 L · Fb 34 Hz
LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.