KICX ZM-12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35.7Hz
• Mechanical quality factor QMS 5.26
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.41

Large signal parameters

• Power handling P 350W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.0Ω
• Inductance (1kHz, in series) LE 2.44mH
• VC Diameter 63.5mm

Magnet

• Force factor (in series) Bl 21.8N/A
• Motor constant Bl/√RE 10.9N/√W
• Material Ferrite

Diaphragm

• Effective diameter 244mm
• Effective area SD 469cm²
• Moving mass MMS 239g
• Moving mass (without air load) MMD 231g
• Material Paper

Suspensions

• Stiffness KMS 12N/mm
• Compliance CMS 83µm/N
• Equivalent volume to the compliance VAS 25.9L
• Mechanical resistance RMS 10.2N·s/m

Dimensions

• Nominal diameter 12″
• 312mm
• Baffle cutout diameter 280mm
• Mounting depth 160mm
• Volume occupied by the driver (estimated) 2.7L
• Net weight 6.2kg