Beyma 15WR400 (8 Ohm) standard measurements on LoudspeakerLab. 99.3 dB sensitivity. Fs 36 Hz. Qts 0.300. Evidence grade C (47.0/100).
Fs: 36 Hz; Qts: 0.300; Qes: 0.310; Qms: 8.200; Vas: 236.00 L; Sd: 880.0 cm²; Re: 5.60 Ω; Le: 1.00 mH; Sensitivity: 99.3 dB; Nominal Z: 7.1 Ω; Measured range: 20-19534 Hz
On-axis flatness 51
Scored passband 86 Hz–2.6 kHz
Spec-sheet profiles
Vented ~110.3 L · Fb 52 Hz
LoudspeakerLab evidence grade: C (47.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.