SB Acoustics SB26SFCL38-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 27.4Hz
• Mechanical quality factor QMS 5.59
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 7.9mm
• Air volume displaced at xmax VD 273cm³
• Power handling P 80W
• Program power Pmax 160W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 1mH
• VC Diameter 38.5mm
• Winding height HVC 21.8mm

Magnet

• Flux density B 1.05T
• Force factor Bl 8.2N/A
• Motor constant Bl/√RE 4.51N/√W
• Air gap height HAG 6mm
• Weight 1.1kg

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 55.2g
• Moving mass (without air load) MMD 50.6g
• Material Paper

Suspensions

• Stiffness KMS 1.64N/mm
• Compliance CMS 610µm/N
• Equivalent volume to the compliance VAS 104L
• Mechanical resistance RMS 1.7N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 10″
• 254mm
• Volume occupied by the driver (estimated) 1.2L
• Net weight 2.9kg