China 21 Inch Heavy Duty Professional Loudspeaker Subwoofer 1200W at 8 Ohms

21 inch Heavy Duty professional Loudspeaker Subwoofer 1200W at 8 Ohms

Product main features:

- high power handling capability,1200W RMS power
- 98dB sensitivity 1w/1m
- 23Hz-900Hz frequency response range
- Heavy duty(330mm OD) ceramic magnet
- A B/L n excess of 46 T/m for dynamic voicing
- 150mm/6 inch 2 layers inside/2 layers outside voice coil with polyimide fiberglass former
- Optimum winding length for longer voice coil displacement and increased linear excursion
- Double spider for improved excursion control and linearity
- Double treated cone for water protection
- BL/Re maximized for high quality horn-loaded application
Introduction:
We are a PA speaker factory of more than 13 years in Panyu,Guangzhou,China,occupying 2000 square meters with 3 production lines.We make Pro audio speakers from small sizes upto 24 inch.
R&D capability:
In the R&D, Hipower's experienced engineers and technicians carry out researches on new materials.state-of-art components and advacned product designs with the help of an anechoic chamber,test instruments and simulation sofwares.
Markets:
Ever since 2003, we have been exporting to many countries, including southeast Asia, Europe, North Ameria and South America.

Speaker's Details:

General SpecificationsNominal Diameter530/21mm/inchRated Impedance8ohmNominal Power handling1200WattsProgram Power2400WattsSensitivity(lw/lm)98dBFrequency Range23-900HzMinimum Impedance(Zmin)9.3ohmVoice Coil Diameter150/6mm/inchVoice Coil MaterialCopper Voice Coil Winding Depth30mmNumber of layers4(inside/outside) Magnet gap depth12mmSurround ShapeTripple-roll BasketCast Aluminum Flux Density1.1TMagnet Material/MassCeramic

Thiele-Small parametersResonance frequencyFs23.4HzDC resistanceRe6.5ohmMechanical factorQms14.4 Electrical factorQes0.22 Total factorQts0.22 Mechanical complianceCms0.1mm/NMechanical resistance
of suspension lossesRms4.94mech-ohmEffective Moving MassMms485grHalf-space efficiencyEff2.14%BL FactorBL45.9T.mEquivalent Cas air loadVas385litersEffective piston areaSd0.1698m2Max.linear excursionXmax12mmVoice-coil inductanceLelK6.24mH

Mounting InformationOverall Diameter556mmBolt Circle Diameter528mmBolt Hole Diameter6.5mmBaffle Cutout Diameter493mmOverall Depth220mmNet Weight28.5Kgkg