B & C  PROFESSIONAL COMPONENTS

21DS115 - 21" VERY HIGH POWER WOOFER 

THE B&C 21DS115 HAS A VERY HIGH MOTOR STRENGTH W/ A BL FACTOR OF 40.8T-M, HANDLES 3,400 WATTS POWER WITH A HIGH XMAX OF 15MM!

B&C 21DS115B&C 21DS115

21DS115

4 Ohm Version

 

Item Price: $540.67

8 Ohm Version

Item Price: $540.67

SPEAKER MODEL

21DS115

SPECIFICATIONS

Nominal Basket Diameter

21" / 530mm

Impedance

4 or 8 ohms

RMS Power Rating

1,700 Watts

Program Power  3,400 Watts  

Frequency Response

30Hz - 1.0kHz

Sensitivity (1W/1m)

99dB

Voice Coil Diameter

4.5" / 116mm

Winding Material Aluminum
Former Material Glass Fibre
Winding Depth 1.42" / 36mm
Magnetic Gap Depth .55" / 14mm
X Damage (peak to peak) 60 mm
Flux Density .8T

MOUNTING INFORMATION

Overall Diameter 21.54" / 547mm
Bolt Circle Diameter 20.7" / 527mm
Baffle Cutout Diameter 20" / 508mm
Depth 10.04" / 255mm
Flange & Gasket Thickness .51" / 13mm
No. Of Mounting Holes 8
Net Weight 32.63 lbs./ 14.8 kg.
Shipping Weight 37.92 lbs./ 17.2 kg.

MATERIALS

Basket Cast Aluminum
Cone Paper
Cone Shape Radial
Spider Double Silicone
Surround Shape Triple Roll
Pole Design T-Pole
Demodulation Ring Aluminum
Magnet Neodymium

  THIELE-SMALL PARAMETERS

Resonant Frequency (fs)

30 Hz
Impedance (Re) 5.1 ohms
Electrical Factor (Qes) .24
Mechanical Q (Qms) 10.0
Total Q (Qts) .23
Compliance Equiv. Vol. (Vas) 269 Liters/9.5cu. ft.
Voice Coil Overhang (Xmax) 15.0mm
Moving Mmass (Mms) 407 Grams
Reference Efficiency 3%
Surface Area of Cone .1680 m2
BL Factor 40.8 T-M
Coil Inductance (Le) 4.6mH
FREQUENCY RESPONSE
B&C 21DS115 Frequency

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