Cerwin Vega VPRO154D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.3dB

Thiele & Small parameters

• Resonance frequency (free air) fS 28.4Hz
• Mechanical quality factor QMS 10.40
• Electrical quality factor QES 0.61
• Total quality factor QTS 0.58

Large signal parameters

• Maximum linear excursion xmax 22.5mm
• Air volume displaced at xmax VD 1800cm³
• Power handling P 900W
• Program power Pmax 1800W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 5.6Ω
• Inductance (1kHz, in series, estimated) LE 6.38mH

Magnet

• Force factor (in series) Bl 24.6N/A
• Motor constant Bl/√RE 10.4N/√W
• Diameter 191mm

Diaphragm

• Effective diameter 319mm
• Effective area SD 800cm²
• Moving mass MMS 372g
• Moving mass (without air load) MMD 355g

Suspensions

• Stiffness KMS 4N/mm
• Compliance CMS 250µm/N
• Equivalent volume to the compliance VAS 87.7L
• Mechanical resistance RMS 6.38N·s/m

Dimensions

• Nominal diameter 15″
• 401mm
• Overall diameter 401mm
• Baffle cutout diameter 346mm
• Mounting depth 186mm
• Volume occupied by the driver 2.63L