GRS 12SMP-4 standard | Fs 28 Hz, 90.9 dB, Qts 0.507 | LoudspeakerLab

Name: GRS 12SMP-4 standard | Fs 28 Hz, 90.9 dB, Qts 0.507 | LoudspeakerLab
Brand: GRS
SKU: 12SMP-4
Price: 66.99 USD
Availability: InStock

GRS 12SMP-4 standard measurements on LoudspeakerLab. 90.9 dB sensitivity. Fs 28 Hz. Qts 0.507. Evidence grade C+ (56.8/100).

Thiele-Small parameters

Fs: 28 Hz; Qts: 0.507; Qes: 0.607; Qms: 3.088; Vas: 132.20 L; Sd: 522.8 cm²; Re: 3.91 Ω; Le: 0.41 mH; Sensitivity: 90.9 dB; Nominal Z: 4.2 Ω; Measured range: 10-20000 Hz

Driver quality scores

On-axis flatness 51 · DI tracking 34 · DI smoothness 20

Usable passband

Scored passband 42 Hz–2.0 kHz

Measurement coverage

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

Recommended enclosure

Vented ~181.3 L · Fb 25 Hz

Measurement profiles

spec sheet (spec_sheet)

Where to buy

parts_express — $66.99 USD
solen — $86.14 CAD
soundimports — $74.34 EUR

Measurement quality

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