super bass 21'' AES 2000watts subwoofers 330mm big magnets for karaoke outdoor stage equipments show performance

MODEL:GB21150

General Specifications 

 Nominal diameter:550MM/21 inch 

Nominal impedance:8 ohm 

Minimum Impedance :6 ohm 

Nominal Power Handling:2000W 

Continuous Power Handling:4000W 

Sensitivity 1W/1M :96 dB 

 Frequency range:30 - 1000 Hz 

 voice coil diameter:150mm/6 inch 

Winding Material :Copper 

Paper cone material:import RDM cloth-edge 

Magnet :Φ330*3 Ferrite Ring 

Thiele & Small Parameters 

Fs (Resonance Frequency ):30Hz 

Re (DC Resistance):5.7 ohm 

Qms(Mechanical Factor ):6.2 

Qes(Electrical Factor ):0.35 

Qts(Total Factor ):0.34 

Vas(Equivalent Cas Air Load):280L 

Mms(Effective Moving Mass):399gr 

Bl(BL Factor ):34T.m 

Sd(Effettive Piston Area ):1860cm² 

Mounting & Shipping Information 

 Overall Diameter :550mm  

Bolt circle Diameter :530mm 

Baffle Cutout Diameter:500mm 

Depth:280mm 

Net Weight:48.2kg 

Shipping Weight:50.1kg