Dayton Audio ND105-4 standard measurements on LoudspeakerLab. 84.6 dB sensitivity. Fs 79 Hz. Qts 0.610. Evidence grade C+ (56.8/100).
Fs: 79 Hz; Qts: 0.610; Qes: 0.660; Qms: 7.420; Vas: 1.97 L; Sd: 51.5 cm²; Re: 3.70 Ω; Le: 0.76 mH; Sensitivity: 84.6 dB; Nominal Z: 4.2 Ω; Measured range: 20-20000 Hz
On-axis flatness 76 · DI tracking 74 · DI smoothness 62
Scored passband 120 Hz–3.6 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Sealed ~3.7 L
LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.