SB Acoustics SB34NRX75-6

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 19Hz
• Mechanical quality factor QMS 5.10
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 11mm
• Air volume displaced at xmax VD 559cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 6Ω
• DC resistance RE 4.2Ω
• Inductance (1kHz) LE 1.8mH
• VC Diameter 75.6mm
• Winding height HVC 28mm

Magnet

• Flux density B 0.9T
• Force factor Bl 10.7N/A
• Motor constant Bl/√RE 5.22N/√W
• Air gap height HAG 6mm
• Weight 2.1kg

Diaphragm

• Effective diameter 254mm
• Effective area SD 508cm²
• Moving mass MMS 99g
• Moving mass (without air load) MMD 90.9g
• Material Norex

Suspensions

• Stiffness KMS 1.41N/mm
• Compliance CMS 710µm/N
• Equivalent volume to the compliance VAS 260L
• Mechanical resistance RMS 2.3N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 2.6L
• Net weight 6.02kg
• Frame material Cast aluminium