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21XL3000 { 21" - 3000 W - 98 dB - 8 Ohm }
Available Impedance: 8 Ohm
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Nominal Specifications
Nominal Diameter 535 mm (21 in)
Overall Diameter 547 mm (21.54 in)
Bolt Circle Diameter 527 mm (20.75 in)
Baffle Cutout Diameter 508 mm (20.00 in)
Depth 274 mm (10.79 in)
Flange and Gasket Thickness 16 mm (0.63 in)
Net Weight 21.5 kg (47.4 lb)
Shipping Box
(Single Carton Box)		 580 x 580 x 323 mm
(22.8 x 22.8 x 12.7 in)
Shipping Weight 23.5 kg (51.8 lb)


Technical Parameters
Nominal Impedance 8 Ohm
Minimum Impedance 7 Ohm
AES Power Handling (1) 3000 W
Maximum Power Handling (2) 6000 W
Sensitivity (1W/1m) 98 dB
Frequency Range 30÷1000 Hz
Voice Coil Diameter 165 mm (6.5 in)
Winding Material Al
Former Material Glass Fiber
Winding Depth 40 mm (1.57 in)
Magnetic Gap Depth 14 mm (0.55 in)
Flux Density 1.4 T
Magnet Neodymium Ring
Basket Material Aluminum
Demodulation Aluminum Ring
Cone Surround (3) Triple Roll
NET Air Volume filled by Loudspeaker 13.0 dm^3 (0.459 ft^3)
Spider Profile 2x non-adjacent constant height waves
Thiele and small parameters
Fs 30 Hz
Re 5.9 Ohm
Qes 0.25
Qms 8.8
Qts 0.25
Vas 284.6 dm^3 (10.05 ft^3)
Sd 1744 cm^2 (270.32 in^2)
Xmax (4) 17.67 mm
Xdamage (5) 40 mm
Mms 420.0 g
Bl 43.0 N/A
Le 1.25 mH
Mmd 337.7 g
Cms 0.07 mm/N
Rms 9.0 kg/s
Eta Zero 3.0 %
EBP 119 Hz


PART NUMBER (P/N)
Push Terminals - 8 Ohm Version 05404427



Notes:
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Maximum power is defined as 3dB greater than nominal power.
(3) Treated Polycotton
(4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(5) Maximum excursion before permanent damage
Quick acoustic specs
Nominal Impedance 8 Ohm
Minimum Impedance 7 Ohm
AES Power Handling (1) 3000 W
Sensitivity (1W/1m) 98 dB
Frequency Range 30÷1000 Hz
Flux Density 1.4 T
Magnet Neodymium Ring
Demodulation Aluminum Ring
Cone Surround (2) Triple Roll
Fs 30 Hz
Re 5.9 Ohm
Qes 0.25
Qms 8.8
Qts 0.25
Vas 284.6 dm^3 (10.05 ft^3)
Sd 1744 cm^2 (270.32 in^2)
Xmax (3) 17.67 mm
Xdamage (4) 40 mm
Mms 420.0 g
Bl 43.0 N/A
Le 1.25 mH
Mmd 337.7 g
Cms 0.07 mm/N
Rms 9.0 kg/s
Eta Zero 3.0 %
EBP 119 Hz



Note:
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Treated Polycotton
(3) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(4) Maximum excursion before permanent damage
Quick mechanical specs
Nominal Diameter 535 mm (21 in)
Overall Diameter 547 mm (21.54 in)
Bolt Circle Diameter 527 mm (20.75 in)
Baffle Cutout Diameter 508 mm (20.00 in)
Depth 274 mm (10.79 in)
Flange and Gasket Thickness 16 mm (0.63 in)
Net Weight 21.5 kg (47.4 lb)
Shipping Box
(Single Carton Box)		 580 x 580 x 323 mm
(22.8 x 22.8 x 12.7 in)
Shipping Weight 23.5 kg (51.8 lb)