Scan-Speak D2904/950000 standard | Fs 550 Hz, 91.0 dB, Qts 0.390 | LoudspeakerLab

Thiele-Small parameters

Fs: 550 Hz; Qts: 0.390; Qes: 0.530; Qms: 1.470; Vas: 0.02 L; Sd: 9.5 cm²; Re: 3.50 Ω; Le: 0.05 mH; Sensitivity: 91.0 dB; Nominal Z: 4.0 Ω; Measured range: 233-20000 Hz

Driver quality scores

On-axis flatness 85 · DI tracking 57 · DI smoothness 45

Usable passband

Scored passband 1004 Hz–15.4 kHz

Measurement coverage

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

Measurement profiles

• spec sheet (spec_sheet)

Where to buy

• audioxcel — $154.95 EUR
• madisound — $176.30 USD
• solen — $233.58 CAD
• soundimports — $128.06 EUR

Measurement quality

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

Manufacturer

• Scan-Speak