Cerwin Vega VPRO104D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35.7Hz
• Mechanical quality factor QMS 7.70
• Electrical quality factor QES 0.71
• Total quality factor QTS 0.60

Large signal parameters

• Maximum linear excursion xmax 15.4mm
• Air volume displaced at xmax VD 508cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.5Ω
• Inductance (1kHz, in series, estimated) LE 3.79mH

Magnet

• Force factor (in series) Bl 16.7N/A
• Motor constant Bl/√RE 6.55N/√W
• Diameter 154mm

Diaphragm

• Effective diameter 205mm
• Effective area SD 330cm²
• Moving mass MMS 136g
• Moving mass (without air load) MMD 131g

Suspensions

• Stiffness KMS 5.13N/mm
• Compliance CMS 195µm/N
• Equivalent volume to the compliance VAS 20.7L
• Mechanical resistance RMS 3.95N·s/m

Dimensions

• Nominal diameter 10″
• 272mm
• Overall diameter 272mm
• Baffle cutout diameter 224mm
• Mounting depth 143mm
• Volume occupied by the driver 1.76L