PHL audio 4330NdU

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.4dB
• Frequency response 30 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 3.83
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 8mm
• Maximum excursion before damage xlim 17mm
• Air volume displaced at xmax VD 422cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1.6mH
• VC Diameter 77mm
• Winding height HVC 25mm

Magnet

• Force factor Bl 22N/A
• Motor constant Bl/√RE 9.47N/√W
• Air gap height HAG 10mm
• Diameter 140mm
• Material Neodymium

Diaphragm

• Effective diameter 259mm
• Effective area SD 527cm²
• Moving mass MMS 93.1g
• Moving mass (without air load) MMD 84.6g

Suspensions

• Stiffness KMS 4.76N/mm
• Compliance CMS 210µm/N
• Equivalent volume to the compliance VAS 82.6L
• Mechanical resistance RMS 5.5N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 307mm
• Baffle cutout diameter 282mm
• Overall depth 155mm
• Flange thickness 13mm
• Mounting depth 142mm
• Volume occupied by the driver 2.1L
• Net weight 5.9kg