Dayton Audio SD215A-88 standard | Fs 31 Hz, 88.5 dB, Qts 0.390 | LoudspeakerLab

Thiele-Small parameters

Fs: 31 Hz; Qts: 0.390; Qes: 0.450; Qms: 3.100; Vas: 38.20 L; Sd: 208.7 cm²; Re: 3.20 Ω; Le: 1.16 mH; Sensitivity: 88.5 dB; Nominal Z: 3.4 Ω; Measured range: 20-20000 Hz

Driver quality scores

On-axis flatness 70

Usable passband

Scored passband 44 Hz–2.0 kHz

Measurement coverage

Spec-sheet profiles

Recommended enclosure

Vented ~29.0 L · Fb 35 Hz

Measurement profiles

• spec sheet (spec_sheet)

Public designs

1 public loudspeaker design on LoudspeakerLab use this driver.

• 2 way compact tower

Where to buy

• parts_express — $44.98 USD
• rumoh — $64.42 EUR
• soundimports — $49.55 EUR

Measurement quality

LoudspeakerLab evidence grade: C (46.8/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

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Manufacturer

• Dayton Audio