P.Audio 8NX-65MB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 70 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 74Hz
• Mechanical quality factor QMS 4.92
• Electrical quality factor QES 0.26
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 3.8mm
• Air volume displaced at xmax VD 80cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.26mH
• VC Diameter 63.7mm
• Winding height HVC 15.5mm
• Winding material Flat aluminium wire
• Former material Kapton

Magnet

• Flux density B 1.3T
• Force factor Bl 17.9N/A
• Motor constant Bl/√RE 7.02N/√W
• Air gap height HAG 8mm
• Material Neodymium

Diaphragm

• Effective diameter 168mm
• Effective area SD 214cm²
• Moving mass MMS 27.5g
• Moving mass (without air load) MMD 25g
• Material Waterproof Paper

Suspensions

• Stiffness KMS 6.02N/mm
• Compliance CMS 166µm/N
• Equivalent volume to the compliance VAS 10.7L
• Mechanical resistance RMS 2.6N·s/m
• Surround material Cloth
• Spider material Cotton

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 237mm
• Baffle cutout diameter 185mm
• Overall depth 103mm
• Flange thickness 14mm
• Mounting depth 89mm
• Volume occupied by the driver (estimated) 1.2L
• Net weight 3.1kg
• Frame material Aluminium