Cerwin Vega V84D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34.1Hz
• Mechanical quality factor QMS 6.80
• Electrical quality factor QES 0.76
• Total quality factor QTS 0.60

Large signal parameters

• Maximum linear excursion xmax 13.5mm
• Air volume displaced at xmax VD 270cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.1Ω
• Inductance (1kHz, in series, estimated) LE 2.95mH

Magnet

• Force factor (in series) Bl 12.8N/A
• Motor constant Bl/√RE 4.8N/√W
• Diameter 118mm

Diaphragm

• Effective diameter 160mm
• Effective area SD 200cm²
• Moving mass MMS 81.6g
• Moving mass (without air load) MMD 79.4g

Suspensions

• Stiffness KMS 4.15N/mm
• Compliance CMS 241µm/N
• Equivalent volume to the compliance VAS 14.6L
• Mechanical resistance RMS 2.57N·s/m

Dimensions

• Nominal diameter 8″
• 222mm
• Overall diameter 222mm
• Baffle cutout diameter 180mm
• Mounting depth 112mm
• Volume occupied by the driver (estimated) 1.1L