SB Acoustics SB10PGC21-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 89Hz
• Mechanical quality factor QMS 11.20
• Electrical quality factor QES 1.01
• Total quality factor QTS 0.92

Large signal parameters

• Maximum linear excursion xmax 2.3mm
• Air volume displaced at xmax VD 6.1cm³
• Power handling P 20W
• Program power Pmax 40W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.15mH
• VC Diameter 20.4mm
• Winding height HVC 7.5mm
• Winding material Copper Clad Aluminium

Magnet

• Flux density B 0.8T
• Force factor Bl 2.3N/A
• Motor constant Bl/√RE 1.25N/√W
• Air gap height HAG 3mm
• Weight 0.09kg

Diaphragm

• Effective diameter 59mm
• Effective area SD 27cm²
• Moving mass MMS 2.8g
• Moving mass (without air load) MMD 2.7g
• Material Fiberglass

Suspensions

• Stiffness KMS 0.877N/mm
• Compliance CMS 1140µm/N
• Equivalent volume to the compliance VAS 1.2L
• Mechanical resistance RMS 0.14N·s/m

Dimensions

• Nominal diameter 3″
• 76mm
• Net weight 0.24kg