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 quality horn-loaded application
Specification
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 |