SB Acoustics Satori MW13P-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.1dB

Thiele & Small parameters

• Resonance frequency (free air) fS 41Hz
• Mechanical quality factor QMS 3.71
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 35cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.8Ω
• Inductance (1kHz) LE 0.13mH
• VC Diameter 30.5mm
• Winding height HVC 15mm
• Winding material Copper Clad Aluminium
• Former material Glass Fiber

Magnet

• Flux density B 1.08T
• Force factor Bl 4.9N/A
• Motor constant Bl/√RE 2.51N/√W
• Air gap height HAG 5mm
• Weight 0.1kg
• Material Neodymium

Diaphragm

• Effective diameter 94mm
• Effective area SD 70cm²
• Moving mass MMS 7.2g
• Moving mass (without air load) MMD 6.7g
• Material EGYPTIAN PAPYRUS™ fibres (made in-house)

Suspensions

• Stiffness KMS 0.478N/mm
• Compliance CMS 2090µm/N
• Equivalent volume to the compliance VAS 14.6L
• Mechanical resistance RMS 0.5N·s/m
• Surround material Rubber
• Spider material BIMAX

Dimensions

• Nominal diameter 5″
• 127mm
• Volume occupied by the driver (estimated) 0.3L
• Net weight 0.78kg
• Frame material Cast aluminium