SB Acoustics SB34SWPL76-3-DV

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 27.5Hz
• Mechanical quality factor QMS 5.62
• Electrical quality factor QES 0.52
• Total quality factor QTS 0.48

Large signal parameters

• Maximum linear excursion xmax 15mm
• Air volume displaced at xmax VD 687cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 5.0Ω
• Inductance (1kHz, in series) LE 5.6mH
• VC Diameter 75.5mm
• Winding height HVC 38mm

Magnet

• Flux density B 0.62T
• Force factor (in series) Bl 19.4N/A
• Motor constant Bl/√RE 8.68N/√W
• Air gap height HAG 8mm
• Weight 2.4kg

Diaphragm

• Effective diameter 241mm
• Effective area SD 458cm²
• Moving mass MMS 231g
• Moving mass (without air load) MMD 224g

Suspensions

• Stiffness KMS 7.14N/mm
• Compliance CMS 140µm/N
• Equivalent volume to the compliance VAS 43L
• Mechanical resistance RMS 7.1N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 3.4L
• Net weight 7.7kg