L21/8623 21inch speaker
- high power handling capability,1200W RMS power
- 98dB sensitivity 1w/1m
- 32Hz-1500Hz frequency response range
- Heavy duty(280mm OD) ceramic magnet
- A B/L n excess of 28 T/m for dynamic voicing
- 125mm/5 inch 1 layers inside/1 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
Speaker's Details:
| 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 | 32-1500 | Hz |
| Minimum Impedance(Zmin) | 6.7 | ohm |
| Voice Coil Diameter | 125/5 | mm/inch |
| Voice Coil Material | Copper | |
| Voice Coil Winding Depth | 25 | mm |
| Number of layers | 2(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 | |||
| Resonance frequency | Fs | 32 | Hz |
| DC resistance | Re | 5.6 | ohm |
| Mechanical factor | Qms | 11.5 | |
| Electrical factor | Qes | 0.35 | |
| Total factor | Qts | 0.34 | |
| Mechanical compliance | Cms | 0.09 | mm/N |
| Mechanical resistance of suspension losses |
Rms | 4.68 | mech-ohm |
| Effective Moving Mass | Mms | 267 | gr |
| Half-space efficiency | Eff | 3.3 | % |
| BL Factor | BL | 28 | T.m |
| Equivalent Cas air load | Vas | 412 | liters |
| Effective piston area | Sd | 0.178 | m2 |
| Max.linear excursion | Xmax | 10 | mm |
| Voice-coil inductance | LelK | 1.6 | mH |
| Mounting Information | ||
| Overall Diameter | 554*572 | mm |
| Bolt Circle Diameter | 554 | mm |
| Bolt Hole Diameter | 6.5 | mm |
| Baffle Cutout Diameter | 496 | mm |
| Overall Depth | 218 | mm |
| Net Weight | 23Kg | kg |
