B&C 21DS115 is a very high power 21" subwoofer for speaker subwoofer systems- B&C 21DS115 21" Subwoofer has a lightweight neodymium magnet - B&C 21DS115 21" high power speaker for speaker subwoofer systems has an xmax of 15.0mm B&C 21DS115 high power subwoofer speaker

B & C PROFESSIONAL COMPONENTS

21DS115 - 21" VERY HIGH POWER WOOFER

THE NEW B&C 21DS115 IS AN VERY HIGH POWER 21" WOOFER THAT HANDLES 1,700 WATTS AES STANDARD & 3,400 WATTS PROGRAM
NEWLY DESIGNED LONGER 4 LAYER ALUMINUM 4.5" SPLIT WINDING VOICE COIL THAT RESULTS IN MORE ENERGY IN THE GAP, HIGHER SPL & LOWER DISTORTION
VERY HIGH EFFICIENCY OF 99DB SPL & SUPER HIGH 15.0MM XMAX
THE HIGHEST BL FACTOR OF 40.8T-M OF ANY WOOFER WE CARRY FOR A STRONG TIGHT CHEST POUNDING INTENSE DEEP BASS SOUND
NEODYMIUM MAGNET WEIGHS ONLY 32.63 LBS., ALUMINUM DEMODULATION RING & VENTILATED VOICE COIL GAP FOR LOWER POWER COMPRESSION
B&C 21DS115 21" WOOFER IS OPTIMIZED FOR EXTREMELY HIGH OUTPUT SUBWOOFER SYSTEMS IN CONCERT, SOUND REINFORCEMENT SYSTEMS, THEATER, ETC.
AVAILABLE IN 4 OR 8 OHMS

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!
	21DS115
	4 Ohm Version Item Price: $735.00
	8 Ohm Version Item Price: $735.00

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

US Speaker, LLC