PHL audio 4330NdU

• Sensitivity (1W, 1m, infinite baffle)SPL1W93.4dB
• Frequency response30 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air)fS36Hz
• Mechanical quality factorQMS3.83
• Electrical quality factorQES0.23
• Total quality factorQTS0.22

Large signal parameters

• Maximum linear excursionxmax8mm
• Maximum excursion before damagexlim17mm
• Air volume displaced at xmaxVD422cm³
• Power handlingP500W
• Program powerPmax1000W

Voice Coil

• Nominal impedanceZ8Ω
• DC resistanceRE5.4Ω
• Inductance (1kHz)LE1.6mH
• VC Diameter77mm
• Winding heightHVC25mm

Magnet

• Force factorBl22N/A
• Motor constantBl/√RE9.47N/√W
• Air gap heightHAG10mm
• Diameter140mm
• MaterialNeodymium

Diaphragm

• Effective diameter259mm
• Effective areaSD527cm²
• Moving massMMS93.1g
• Moving mass (without air load)MMD84.6g

Suspensions

• StiffnessKMS4.76N/mm
• ComplianceCMS210µm/N
• Equivalent volume to the complianceVAS82.6L
• Mechanical resistanceRMS5.5N·s/m

Dimensions

• Nominal diameter12″
• 300mm
• Overall diameter307mm
• Baffle cutout diameter282mm
• Overall depth155mm
• Flange thickness13mm
• Mounting depth142mm
• Volume occupied by the driver2.1L
• Net weight5.9kg