KICKER CompQ 4-Ω 51CWQ124

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB
• Frequency response 20 - 100Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35.9Hz
• Mechanical quality factor QMS 10.90
• Electrical quality factor QES 0.65
• Total quality factor QTS 0.61

Large signal parameters

• Maximum linear excursion xmax 23mm
• Air volume displaced at xmax VD 1165cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.0Ω
• Inductance (1kHz, in series) LE 7.56mH

Magnet

• Force factor (in series) Bl 26.4N/A
• Motor constant Bl/√RE 9.99N/√W

Diaphragm

• Effective diameter 254mm
• Effective area SD 507cm²
• Moving mass MMS 287g
• Moving mass (without air load) MMD 279g

Suspensions

• Stiffness KMS 14.6N/mm
• Compliance CMS 69µm/N
• Equivalent volume to the compliance VAS 25.1L
• Mechanical resistance RMS 5.93N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Baffle cutout diameter 281mm
• Mounting depth 181mm
• Volume occupied by the driver (estimated) 2.4L