Wavecor FR055WA01

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.3dB
• Frequency response 142 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 142Hz
• Mechanical quality factor QMS 8.80
• Electrical quality factor QES 1.01
• Total quality factor QTS 0.91

Large signal parameters

• Maximum linear excursion xmax 1.4mm
• Air volume displaced at xmax VD 2.1cm³
• Power handling P 4W
• Program power Pmax 20W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz) LE 0.079mH
• VC Diameter 22mm
• Winding height HVC 4.7mm

Magnet

• Force factor Bl 2.09N/A
• Motor constant Bl/√RE 1.19N/√W
• Air gap height HAG 2mm

Diaphragm

• Effective diameter 45mm
• Effective area SD 15.6cm²
• Moving mass MMS 1.6g
• Moving mass (without air load) MMD 1.6g

Suspensions

• Stiffness KMS 1.27N/mm
• Compliance CMS 785µm/N
• Equivalent volume to the compliance VAS 0.27L
• Mechanical resistance RMS 0.16N·s/m

Dimensions

• Nominal diameter 2″
• 51mm