Heavy Duty 18 Inch Professional Audio Best Pro Speaker
SubwooferProduct main features:- 18 inch PA speaker- Ideal for
subwoofer- 900W RMS, 98dB- 4 inch voice coil, 220mm dual magnets
- Subwoofer is ideal for high quality professional bass
reflex and bass horn systemsGeneral
Specifications Nominal Diameter460/18mm/inchRated
Impedance8ohmNominal Power handling900WattsProgram
Power1800WattsSensitivity(lw/lm)97dBFrequency
Range33.4-1.8KHzMinimum Impedance(Zmin)5.6ohmVoice Coil
Diameter100/4mm/inchVoice Coil Materialcopper Number of
layers2 Magnet gap depth14mmSurround
ShapeW-roll BasketCast Aluminum Magnet220*2
Ferrite Mounting Information Overall
Diameter469mmBolt Circle Diameter448mmBaffle Cutout
Diameter424mmOverall Depth236mmNet Weight18.85kgShipping
weight20.1kgShipping Box490*490*260mmThiele-Small
ParametersResonance frequency33.435.5HzDC
resistance5.65.6ohmMechanical factor9.894.99 Electrical
factor0.440.41 Total factor0.420.38 Mechanical
compliance0.090.06mm/NMechanical resistance5.515.6mech-ohmof
suspension lossesEffective Moving Mass261.4349.2grHalf-space
efficiency1.431.21%BL Factor26.532.6T.mEquivalent Cas air
load173.9115.2litersVoice-coil inductance1.11.2mH/* March 10, 2023
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