Wavecor SW280WA03

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.9dB
• Frequency response 34 - 300Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 10.20
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 193cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz, estimated) LE 1.62mH
• VC Diameter 39mm
• Winding height HVC 17mm
• Former material Black fiber glass

Magnet

• Force factor Bl 12.5N/A
• Motor constant Bl/√RE 6.88N/√W
• Air gap height HAG 5mm
• Weight 1.4kg

Diaphragm

• Effective diameter 202mm
• Effective area SD 321cm²
• Moving mass MMS 105g
• Moving mass (without air load) MMD 100g
• Material Aluminum

Suspensions

• Stiffness KMS 4.76N/mm
• Compliance CMS 210µm/N
• Equivalent volume to the compliance VAS 30.5L
• Mechanical resistance RMS 2.2N·s/m

Dimensions

• Nominal diameter 11″
• 280mm
• Overall diameter 282mm
• Baffle cutout diameter 256mm
• Mounting depth 81mm
• Volume occupied by the driver (estimated) 1.7L
• Net weight 3.9kg