SB Acoustics SB23NRXS45-4 standard | Fs 27 Hz, 92.0 dB, Qts 0.300 | LoudspeakerLab

SB Acoustics SB23NRXS45-4 standard measurements on LoudspeakerLab. 92.0 dB sensitivity. Fs 27 Hz. Qts 0.300. Evidence grade C+ (57.0/100).

Preview

Thiele-Small parameters

Fs: 27 Hz; Qts: 0.300; Qes: 0.320; Qms: 5.550; Vas: 87.50 L; Sd: 216.0 cm²; Re: 3.30 Ω; Le: 0.29 mH; Sensitivity: 92.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-19097 Hz

Driver quality scores

On-axis flatness 56 · DI tracking 31 · DI smoothness 30

Usable passband

Scored passband 40 Hz–3.1 kHz

Measurement coverage

Spec-sheet profiles · Off-axis H/V response data available.

Recommended enclosure

Vented ~40.9 L · Fb 39 Hz

Measurement profiles

Where to buy

Measurement quality

LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

Manufacturer