Audes 75W104-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.1dB
• Frequency response 30 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 28Hz
• Mechanical quality factor QMS 5.68
• Electrical quality factor QES 0.33
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 176cm³
• Power handling P 130W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 0.8mH
• VC Diameter 50mm
• Winding height HVC 18mm

Magnet

• Force factor Bl 8.8N/A
• Motor constant Bl/√RE 4.92N/√W
• Air gap height HAG 7mm
• Weight 1.36kg

Diaphragm

• Effective diameter 202mm
• Effective area SD 320cm²
• Moving mass MMS 43.8g
• Moving mass (without air load) MMD 39.6g

Suspensions

• Stiffness KMS 1.35N/mm
• Compliance CMS 740µm/N
• Equivalent volume to the compliance VAS 107L
• Mechanical resistance RMS 1.36N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Volume occupied by the driver (estimated) 1.5L
• Net weight 3.5kg