Eighteen Sound

21LW1400

Eighteen Sound
21" EXTENDED L.F. WOOFER 

JUST MIGHT BE THE MOST POWERFUL WOOFER ON THE PLANET!

 

Item Price: $529.99

WOOFER MODEL

21LW1400

Specifications

Diameter

21" / 533mm

Impedance

8 ohms

AES Power Rating 1,500 Watts
Program Power  3,000 Watts
Sensitivity (1W/1m) 99dB SPL

Frequency Response

24Hz - 2.0kHz

Recommended Crossover 250Hz
Voice Coil Diameter 4" / 100mm
BL Factor 33.5 TM
Recommended Enclosure Volume 4.24-17.7 cu. ft / 120-500Liters
Magnet Ferrite

Mounting Information

Overall Diameter 21.46" / 545mm
Bolt Circle Diameter 20.47" / 520mm
Baffle Cutout Diameter 19.37" / 492mm
Overall Depth 10.1" / 256.3mm
Flange Thickness .55" / 14mm
Net Weight 42.38 lbs. / 19.2 kg.
Shipping Weight 45.47 lbs. / 20.6 kg.

Thiele-Small Parameters

Resonant Frequency (fs) 28 Hz
Impedance (Re) 5.0 ohms
Coil Inductance (Le) 2.85mH
Mechanical Q (Qms) 9.32
Electrical Factor(Qes) .242
Total Q (Qts) .235
Comp. Equivelant Vol. (Vas) 13.6 ft3 / 385 Liters
Voice Coil Overhang (Xmax) 9.5mm
Surface Area of Cone (Sd)m2 0.1662m2

Frequency response in 250 Liter enclosure tuned to 28Hz

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