Wavecor WF118WA05

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.6dB
• Frequency response 65 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 65Hz
• Mechanical quality factor QMS 7.50
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.46

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 16cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 0.16mH
• VC Diameter 32mm
• Winding height HVC 11mm

Magnet

• Force factor Bl 4.3N/A
• Motor constant Bl/√RE 2.4N/√W
• Air gap height HAG 5mm
• Weight 0.325kg

Diaphragm

• Effective diameter 83mm
• Effective area SD 54cm²
• Moving mass MMS 7.1g
• Moving mass (without air load) MMD 6.8g

Suspensions

• Stiffness KMS 1.19N/mm
• Compliance CMS 840µm/N
• Equivalent volume to the compliance VAS 3.5L
• Mechanical resistance RMS 0.39N·s/m

Dimensions

• Nominal diameter 4.5″
• 114mm
• Volume occupied by the driver (estimated) 0.37L
• Net weight 0.95kg