GRS 3AS-4

4Ω

Full-range

Nominal diameter	3.5″ / 105 mm
Resonance	124 Hz
Q factor	0.95
Sensitivity	84.1 dB
Program power	30 W

GRS 3AS-4 Full-range

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 84.1dB
Frequency response 100 - 15000Hz

Thiele & Small parameters

Resonance frequency (free air) fS 124Hz
Mechanical quality factor QMS 3.54
Electrical quality factor QES 1.30
Total quality factor QTS 0.95

Large signal parameters

Power handling P 15W
Program power Pmax 30W

Voice Coil

Nominal impedance Z 4Ω
DC resistance RE 3.6Ω
Inductance (1kHz) LE 0.3mH

Magnet

Force factor Bl 2.8N/A
Motor constant Bl/√RE 1.48N/√W
Diameter 60mm

Diaphragm

Effective diameter 68mm
Effective area SD 36.1cm²
Moving mass (including air load) MMS 3.5g
Moving mass MMD 3.3g

Suspensions

Stiffness KMS 2.13N/mm
Compliance CMS 470µm/N
Equivalent volume to the compliance VAS 0.9L
Mechanical resistance RMS 0.77N·s/m

Dimensions

Nominal diameter 3.5″
105mm
Overall diameter 105mm
Overall depth 46mm
Flange thickness 6mm
Mounting depth 40mm
Volume occupied by the driver (estimated) 0.12L

GRS 3AS-4 SPL

GRS 3AS-4 Dimensions

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