B&C 21SW152 is a very high power 21" subwoofer for speaker subwoofer systems- B&C 21SW152 21" Subwoofer has a lightweight neodymium magnet - B&C 21SW152 21" high power speaker for speaker subwoofer systems has an xmax of 15.0mm. B&C 21SW152 high power spe

THE B&C 21SW152 HAS A VERY LARGE 6" VOICE COIL, ALUMINUM DEMODULATION RING, 4,000 WATTS POWER, LIGHT NEO MAGNET W/ 15.0MM XMAX!
	21SW152
	4 Ohm Version Item Price: $845.82
	8 Ohm Version Item Price: $845.82

SPEAKER MODEL	21SW152
SPECIFICATIONS
Nominal Basket Diameter	21" / 530mm
Impedance	4 or 8 ohms
RMS Power Rating	2,000 Watts
Program Power	4,000 Watts
Frequency Response	30Hz - 1.0kHz
Sensitivity (1W/1m)	96dB
Voice Coil Diameter	6" / 152.4mm
Winding Material	Copper
Former Material	Glass Fibre
Winding Depth	1.18" / 30mm
Magnetic Gap Depth	.5" / 12mm
Flux Density	1.2T
RECOMMENDED CABINET SPECIFICATIONS
Cabinet Volume	6.7 cu. ft. / 190 Liters
Port Size	24" wide x 2.0" height x 19.75" deep
Tuning Frequency	33Hz
MOUNTING INFORMATION
Overall Diameter	21.5" / 547mm
Bolt Circle Diameter	20.7" / 527mm
Baffle Cutout Diameter	20" / 508mm
Depth	10.3" / 261mm
Flange & Gasket Thickness	.63" / 16mm
No. Of Mounting Holes	8
Net Weight	40.7 lbs./ 18.5 kg.
Shipping Weight	46 lbs./ 20.9 kg.
MATERIALS
Basket	Cast Aluminum
Cone	Paper
Cone Shape	Radial
Spider	Double Silicone
Surround Shape	Triple Roll
Pole Design	T-Pole
Magnet	Neodymium
THIELE-SMALL PARAMETERS
Resonant Frequency (fs)	32 Hz
Impedance (Re)	6 ohms
Electrical Factor (Qes)	.31
Mechanical Q (Qms)	7.0
Total Q (Qts)	.3
Compliance Equiv. Vol. (Vas)	200 Liters/7.0cu. ft.
Voice Coil Overhang (Xmax)	15.0mm
Reference Efficiency	2%
Surface Area of Cone	.1680 m2
BL Factor	32.5 T-M
Coil Inductance (Le)	1.5mH
FREQUENCY RESPONSE IN BASS REFLEX CABINET

FREQUENCY RESPONSE

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