BEYMA 21L50 - 21" HIGH POWER WOOFER 

DESIGNED FOR MASSIVE HIGH SOUND PRESSURE LOW FREQUENCY!

Beyma 21L50

BEYMA 21L50

No Longer Available

WOOFER MODEL  - 21L50

Specifications

Nominal Basket Diameter

21" / 540mm

Impedance

8 ohms

AES Power Rating

1,000 Watts

Program Power  2,000 Watts  

Frequency Response

25Hz - 1.2kHz

Sensitivity (1W/1m)

98dB

Voice Coil Diameter

4.5" / 114mm

Recom. Enclosure Volume 3.5-8.75 ft3 / 100-250 Liters
Voice Coil Length 25 mm
Air Gap Height 11 mm
X Damage (peak to peak) 35 mm
BL Factor 28 N/A
Magnetic Assembly Weight 26.4 lb. / 12 kg.

Mounting Information

Overall Diameter 21.65" / 550mm
Bolt Circle Diameter 20.68" / 528mm
Baffle Cutout Diameter  
- Front Mount 19.48" / 495mm
- Rear Mount 20.07" / 510mm
No. Of Mounting Holes 8
Volume Displaced By Driver 0.7 ft3  /  20 Liters
Overall Depth 9.25" / 235mm
Net Weight 33 lb. / 15 kg.
Shipping Weight 41.8 lb. / 19 kg.

Materials

Basket Die Cast Aluminum
Cone Paper
Surround Treated Cloth
Voice Coil Edgewound Copper Ribbon
Magnet Ferrite

Thiele-Small Parameters

Resonant Frequency (fs) 33 Hz
Impedance (Re) 6.0 ohms
Coil Inductance (Le) 2.4 mH
Mechanical Q (Qms) 12.03
Electrical Factor(Qes) .45
Total Q (Qts) .43
Comp. Equivelant Vol. (Vas) 12.36 ft3 / 350 Liters
Voice Coil Overhang (Xmax) 9.0 mm
Surface Area of Cone (Sd)m2 0.1764m2
Reference Efficiency 2.7%
Displacement Volume (Vd) 1600 cm3

Low Freq. Response: Bass Reflex Cabinet-Vb=200L, Fb=33Hz

Frequency Response & Distortion Curves
Mounting Dimensions

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