Beyma 21LEX1600Nd (8 Ohm) standard measurements on LoudspeakerLab. 94.4 dB sensitivity. Fs 30 Hz. Qts 0.290. Evidence grade C (47.0/100).
Fs: 30 Hz; Qts: 0.290; Qes: 0.300; Qms: 8.600; Vas: 305.00 L; Sd: 1734.0 cm²; Re: 5.40 Ω; Le: 4.70 mH; Sensitivity: 94.4 dB; Nominal Z: 9.4 Ω; Measured range: 20-19267 Hz
On-axis flatness 49
Scored passband 48 Hz–1.6 kHz
Spec-sheet profiles
Vented ~133.4 L · Fb 45 Hz
LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.