KICX ZT-12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86dB

Thiele & Small parameters

• Resonance frequency (free air) fS 31.6Hz
• Mechanical quality factor QMS 4.51
• Electrical quality factor QES 0.41
• Total quality factor QTS 0.38

Large signal parameters

• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.0Ω
• Inductance (1kHz, in series) LE 3.12mH
• VC Diameter 63.5mm

Magnet

• Force factor (in series) Bl 23.1N/A
• Motor constant Bl/√RE 11.6N/√W
• Material Ferrite

Diaphragm

• Effective diameter 233mm
• Effective area SD 425cm²
• Moving mass MMS 228g
• Moving mass (without air load) MMD 221g
• Material Paper

Suspensions

• Stiffness KMS 9.01N/mm
• Compliance CMS 111µm/N
• Equivalent volume to the compliance VAS 28.4L
• Mechanical resistance RMS 12.2N·s/m

Dimensions

• Nominal diameter 12″
• 312mm
• Baffle cutout diameter 280mm
• Mounting depth 175mm
• Volume occupied by the driver (estimated) 4.7L
• Net weight 10.47kg