SB Acoustics SB17NBAC35-4 standard measurements on LoudspeakerLab. 90.0 dB sensitivity. Fs 30 Hz. Qts 0.290. Evidence grade C+ (57.0/100).
Fs: 30 Hz; Qts: 0.290; Qes: 0.310; Qms: 4.300; Vas: 42.60 L; Sd: 118.0 cm²; Re: 3.10 Ω; Le: 0.13 mH; Sensitivity: 90.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-19111 Hz
On-axis flatness 60 · DI tracking 63 · DI smoothness 41
Scored passband 57 Hz–2.9 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~18.6 L · Fb 45 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.