SEAS FEA18RCZ standard measurements on LoudspeakerLab. 89.7 dB sensitivity. Fs 42 Hz. Qts 0.390. Evidence grade C+ (57.0/100).
Fs: 42 Hz; Qts: 0.390; Qes: 0.420; Qms: 6.290; Vas: 31.00 L; Sd: 136.0 cm²; Re: 5.70 Ω; Le: 0.49 mH; Sensitivity: 89.7 dB; Nominal Z: 8.0 Ω; Measured range: 24-19996 Hz
On-axis flatness 53 · DI tracking 37 · DI smoothness 35
Scored passband 102 Hz–3.7 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~23.6 L · Fb 48 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.