Wavecor SW275BD02

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.5dB
• Frequency response 31 - 400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 31.6Hz
• Mechanical quality factor QMS 12.40
• Electrical quality factor QES 0.70
• Total quality factor QTS 0.67

Large signal parameters

• Maximum linear excursion xmax 16mm
• Air volume displaced at xmax VD 502cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.1Ω
• Inductance (1kHz) LE 1.74mH
• VC Diameter 64mm
• Winding height HVC 39mm

Magnet

• Force factor Bl 15.2N/A
• Motor constant Bl/√RE 5.7N/√W
• Air gap height HAG 7mm

Diaphragm

• Effective diameter 200mm
• Effective area SD 314cm²
• Moving mass MMS 115g
• Moving mass (without air load) MMD 111g

Suspensions

• Stiffness KMS 4.55N/mm
• Compliance CMS 220µm/N
• Equivalent volume to the compliance VAS 31L
• Mechanical resistance RMS 1.85N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Volume occupied by the driver (estimated) 3.6L
• Net weight 8.0kg