Dayton Audio ND140-4 standard | Fs 59 Hz, 85.9 dB, Qts 0.630 | LoudspeakerLab

Thiele-Small parameters

Fs: 59 Hz; Qts: 0.630; Qes: 0.720; Qms: 5.350; Vas: 7.22 L; Sd: 86.6 cm²; Re: 3.70 Ω; Le: 0.79 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

Sealed ~12.8 L

Measurement profiles

• spec sheet (spec_sheet)
• spec sheet (spec_sheet)

Where to buy

• blackdotaudio — $165.34 PLN
• parts_express — $34.98 USD
• rumoh — $38.40 EUR
• solen — $57.22 CAD
• soundimports — $31.78 EUR

Measurement quality

LoudspeakerLab evidence grade: C+ (56.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

More from Dayton Audio

• 8MB200N-8
• AMT2-4
• AMT3-4
• AMTHR-4
• AMTPOD-4
• AMTPRO-4
• AN25F-4
• AN25Ti-4

Manufacturer

• Dayton Audio