SB Acoustics SB17NBAC35-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 31.5Hz
• Mechanical quality factor QMS 4.10
• Electrical quality factor QES 0.38
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 65cm³
• Power handling P 60W
• Program power Pmax 120W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.15mH
• VC Diameter 35.5mm
• Winding height HVC 16mm
• Winding material Copper Clad Aluminium
• Former material Glass Fiber

Magnet

• Flux density B 1T
• Force factor Bl 5.9N/A
• Motor constant Bl/√RE 2.47N/√W
• Air gap height HAG 5mm
• Weight 0.54kg

Diaphragm

• Effective diameter 123mm
• Effective area SD 118cm²
• Moving mass MMS 12.5g
• Moving mass (without air load) MMD 11.6g
• Material Aluminium

Suspensions

• Stiffness KMS 0.435N/mm
• Compliance CMS 2300µm/N
• Equivalent volume to the compliance VAS 45L
• Mechanical resistance RMS 0.6N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6″
• 152mm
• Volume occupied by the driver (estimated) 0.63L
• Net weight 1.56kg
• Frame material Cast aluminium