SB Acoustics SB21RDC-C000 standard | Fs 760 Hz, 90.0 dB, Qts 1.000 | LoudspeakerLab

Thiele-Small parameters

Fs: 760 Hz; Qts: 1.000; Qes: 1.640; Qms: 2.540; Sd: 4.6 cm²; Re: 3.10 Ω; Le: 0.04 mH; Sensitivity: 90.0 dB; Nominal Z: 4.0 Ω; Measured range: 106-20000 Hz

Driver quality scores

On-axis flatness 83 · DI tracking 33 · DI smoothness 36

Usable passband

Scored passband 1526 Hz–15.0 kHz

Measurement coverage

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

Measurement profiles

• IEC baffle (spec_sheet)

Where to buy

• madisound — $55.70 USD
• solen — $70.60 CAD
• soundimports — $41.28 EUR
• theloudspeakerkit — $79.50 AUD

Measurement quality

LoudspeakerLab evidence grade: C+ (56.2/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.

Also known as

SB21RDC-C000-4

Manufacturer

• SB Acoustics