Wavecor FR070WA04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.7dB
• Frequency response 117 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 117Hz
• Mechanical quality factor QMS 12.70
• Electrical quality factor QES 1.07
• Total quality factor QTS 0.98

Large signal parameters

• Power handling P 10W
• Program power Pmax 20W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz) LE 0.11mH
• VC Diameter 22mm
• Winding height HVC 7mm

Magnet

• Force factor Bl 2.9N/A
• Motor constant Bl/√RE 1.15N/√W
• Air gap height HAG 3mm
• Weight 0.115kg

Diaphragm

• Effective diameter 52mm
• Effective area SD 21cm²
• Moving mass MMS 1.9g
• Moving mass (without air load) MMD 1.8g

Suspensions

• Stiffness KMS 1.03N/mm
• Compliance CMS 970µm/N
• Equivalent volume to the compliance VAS 0.61L
• Mechanical resistance RMS 0.11N·s/m

Dimensions

• Nominal diameter 2.75″
• 70mm
• Volume occupied by the driver (estimated) 0.11L
• Net weight 0.29kg