JL Audio M12IB6-SG-TB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35.3Hz
• Mechanical quality factor QMS 10.39
• Electrical quality factor QES 0.86
• Total quality factor QTS 0.79

Large signal parameters

• Maximum linear excursion xmax 18.5mm
• Air volume displaced at xmax VD 962cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz, estimated) LE 2.09mH

Magnet

• Force factor Bl 11.3N/A
• Motor constant Bl/√RE 6N/√W
• Diameter 225mm

Diaphragm

• Effective diameter 257mm
• Effective area SD 520cm²
• Moving mass MMS 138g
• Moving mass (without air load) MMD 129g

Suspensions

• Stiffness KMS 6.8N/mm
• Compliance CMS 147µm/N
• Equivalent volume to the compliance VAS 56.4L
• Mechanical resistance RMS 2.95N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 356mm
• Baffle cutout diameter 306mm
• Mounting depth 204mm
• Volume occupied by the driver 4.33L
• Net weight 10.8kg