SB Acoustics SB12CACS25-4 standard measurements on LoudspeakerLab. 88.0 dB sensitivity. Fs 51 Hz. Qts 0.310. Evidence grade C+ (57.0/100).
Fs: 51 Hz; Qts: 0.310; Qes: 0.330; Qms: 4.890; Vas: 5.70 L; Sd: 50.0 cm²; Re: 3.10 Ω; Le: 0.26 mH; Sensitivity: 88.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-19058 Hz
On-axis flatness 56 · DI tracking 73 · DI smoothness 46
Scored passband 154 Hz–3.5 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~2.8 L · Fb 72 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.