21 Inch Speaker

/ / 21 Inch Speaker

21 Inch Speaker

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 qua
lity horn-loaded application

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General Specifications    
Nominal Diameter 530/21 mm/inch
Rated Impedance 8 ohm
Nominal Power handling 1200 Watts
Program Power 2400 Watts
Sensitivity(lw/lm) 98 dB
Frequency Range 23-900 Hz
Minimum Impedance(Zmin)9.3 9.3  Ohm
Voice Coil Diameter 150/6 mm/inch
Voice Coil Material Copper  
Voice Coil Winding Depth 30 mm
Number of layers 4(inside/outside)  
Magnet gap depth 12 mm
Surround Shape Tripple-roll  
Basket Cast Aluminum  
Flux Density 1.1 T
Magnet Material/Mass Ceramic  
Thiele-Small parameters    
Fs 23.4 Hz
Re 6.5 Ohm
Qms 14.4  
Qes 0.22  
Qts 0.22  
Cms 0.1 mm/N
Rms 4.94 mech-ohm
Mms 485 gr
Eff 2.14 %
Bl 45.9 T.m
Vas 385 Liters
Sd 0.1698 m2
Xmax 12 mm
LelK 6.24 mH
Mounting Information    
Overall Diameter 556 mm
Bolt Circle Diameter 528 mm
Bolt Hole Diameter 6.5 mm
Baffle Cutout Diameter 493 mm
Overall Depth 220 mm
Net Weight 28.5 kg