SB Acoustics SB23NRXS45-8 standard measurements on LoudspeakerLab. 88.5 dB sensitivity. Fs 27 Hz. Qts 0.380. Evidence grade C+ (57.0/100).
Fs: 27 Hz; Qts: 0.380; Qes: 0.410; Qms: 5.400; Vas: 94.00 L; Sd: 216.0 cm²; Re: 5.60 Ω; Le: 0.60 mH; Sensitivity: 88.5 dB; Nominal Z: 8.0 Ω; Measured range: 21-9120 Hz
On-axis flatness 59 · DI tracking 42 · DI smoothness 38
Scored passband 40 Hz–2.2 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~67.5 L · Fb 32 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.