18 Inch Subwoofer Super High Power Speaker Professional PRO Audio

18 Inch Subwoofer Super High Power Speaker Professional PRO AudioProduct main features:
- 18 inch PA speaker
- Ideal for subwoofer
- 1500W RMS, 98dB
- 4 inch voice coil, 220mm dual magnets
- Subwoofer is ideal for high quality professional bass reflex and bass horn systemsGeneral SpecificationsNominal Diameter460/18mm/inchRated Impedance8ohmNominal Power handling900WattsProgram Power1800WattsSensitivity(lw/lm)98dBFrequency Range38.7-1.5KHzMinimum Impedance(Zmin)5.6ohmVoice Coil Diameter100/4mm/inchVoice Coil MaterialcopperNumber of layers2Magnet gap depth10mmSurround ShapeM-rollBasketCast AluminiumMagnet220*2 FerriteMounting InformationOverall Diameter474mmBolt Circle Diameter450mmBaffle Cutout Diameter426mmOverall Depth210mmNet Weight14.35kgShipping weight15.5kgShipping Box500*500*260mmThiele-Small ParametersResonance frequencyFs38.7HzDC resistanceRe5.6ohmMechanical factorQms7.48Electrical factorQes0.48Total factorQts0.45Mechanical complianceCms0.09mm/NMechanical resistanceRms5.9mech-ohmof suspension lossesEffective Moving MassMms180.2grHalf-space efficiencyEff2.18%BL FactorBL22.6T.mEquivalent Cas air loadVas18.7litersVoice-coil inductanceLelK1.4mH
INTRODUCTION
Hengda Audio is a professinal speakermanufacturerwith experience in the PA speaker field for 10years. We makedifferent tranducers,compression drivers. We not only provide goods but technology. OEM and ODM are both welcome.