Dayton Audio SIG120-4 standard | Fs 75 Hz, 85.9 dB, Qts 0.430 | LoudspeakerLab

Thiele-Small parameters

Fs: 75 Hz; Qts: 0.430; Qes: 0.470; Qms: 4.840; Vas: 3.09 L; Sd: 56.4 cm²; Re: 3.70 Ω; Le: 0.22 mH; Sensitivity: 85.9 dB; Nominal Z: 4.2 Ω; Measured range: 20-20000 Hz

Driver quality scores

On-axis flatness 70 · DI tracking 48 · DI smoothness 48

Usable passband

Scored passband 90 Hz–4.1 kHz

Measurement coverage

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

Recommended enclosure

Vented ~2.9 L · Fb 78 Hz

Measurement profiles

• spec sheet (spec_sheet)

Where to buy

• parts_express — $32.98 USD
• solen — $41.61 CAD
• soundimports — $28.88 EUR

Measurement quality

LoudspeakerLab evidence grade: C+ (56.6/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

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