Cerwin Vega ST104D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 3.30
• Electrical quality factor QES 0.62
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 16.4mm
• Air volume displaced at xmax VD 541cm³
• Power handling P 800W
• Program power Pmax 1600W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.5Ω
• Inductance (1kHz, in series, estimated) LE 4.57mH

Magnet

• Force factor (in series) Bl 20.4N/A
• Motor constant Bl/√RE 8N/√W
• Diameter 175mm

Diaphragm

• Effective diameter 205mm
• Effective area SD 330cm²
• Moving mass MMS 180g
• Moving mass (without air load) MMD 176g

Suspensions

• Stiffness KMS 8.7N/mm
• Compliance CMS 115µm/N
• Equivalent volume to the compliance VAS 17.4L
• Mechanical resistance RMS 12N·s/m

Dimensions

• Nominal diameter 10″
• 262mm
• Overall diameter 262mm
• Baffle cutout diameter 237mm
• Mounting depth 187mm
• Volume occupied by the driver 2.3L