LF Drivers
21LS1800
21LS1800
Impedance
Diameter
21"
Impedance
8Ω
Continuous Power
1500W
Sensitivity
98dB
Voice Coil
125mm
Magnet
Ferrite
Frequency Range
30Hz-1.5kHz
Features
- 98 dB sensitivity
- 1500 W continuous program power capacity
- 30 - 1500 Hz response
- Optimized ferrite magnet structure
- Long-throw design with high Xvar
- Suitable for bass-reflex and horn-loaded cabinets
General
Nominal Diameter21"
Minimum Impedance5.6Ω
Frequency Range30Hz-1.5kHz
Specifications
Nominal Power Handling750W
Continuous Power Handling1500W
Program Power Handling4000W
Sensitivity98dB
Voice Coil Diameter125mm
Winding MaterialCopper
Former MaterialPolyimide
Winding Depth43 mm
Magnetic Gap Depth14 mm
Flux Density1.15 T
Diaphragm MaterialFront Side All specifications subject to change without notice_E.a
Parameters
Fs
32 Hz
Re
5Ω
Qes
0.35
Qms
8.0
Qts
0.34
Vas
320 dm³
Sd
1700 cm²
Mms
280 g
Reference Efficiency
1.8%
Bl
27.0 Tm
Le
1.8 mH
EBP
91 Hz
Xmax
10.2 mm
Frequency Response
Design
Magnet MaterialFerrite
Mounting & Shipping Info
Overall Diameter545 mm (21.46 in)
Bolt Circle Diameter526 mm (20.71 in)
Baffle Cutout Diameter495 mm (19.49 in)
Depth240 mm (9.45 in)
Flange & Gasket Thickness8 mm (0.31 in)
Net Weight12.0 kg (26.46 lb)
Shipping Weight14.4 kg (31.75 lb)
Shipping Units1 pcs
