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B&C 21DS115 21" PROFESSIONAL NEODYMIUM SUBWOOFER 8 Ohm

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  • B&C 21DS115 21" PROFESSIONAL NEODYMIUM SUBWOOFER 8 Ohm
  • B&C 21DS115 21" PROFESSIONAL NEODYMIUM SUBWOOFER 8 Ohm
$597.27

Description

B&C designed the 21DS115 21" high output subwoofer to produce more output and lower distortion than any other comparably priced driver. With high excursion, incredible efficiency, and excellent power handling, this driver has true earth shaking output capability.

Highlights
  • 99 dB efficiency to ensure high output even with modest amplification
  • Double silicone spider keeps excursion linear even beyond rated Xmax
  • Neodymium magnet allows a very high motor strength without excess weight
  • 4.5" four layer CCA voice coil allows high power handling and Bl
  • Aluminum shorting ring help control the voice coil for lower distortion

Product Details

B&C 21DS115 21" Professional Neodymium Subwoofer 8 Ohm

B&C's 21DS115 21" subwoofer is the next evolution in high output subwoofer design. Using a new, longer, four layer aluminum voice coil to produce more energy in the gap, higher sensitivity, lower distortion, and better overall performance. The 21DS115 features a 36 mm long, 4.5" diameter (116mm) copper clad aluminum wire voice coil. With a 1,700watt AES power rating, 99 dB sensitivity, and over 15 mm of linear excursion, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of their 6" voice coil alternatives.


Product Specifications
  • Nominal Diameter21"
  • Power Handling (RMS)1,700 Watts
  • Power Handling (max)3,400 Watts
  • Impedance8 ohms
  • Frequency Response30 to 1,000 Hz
  • Sensitivity99 dB 2.83V/1m
  • Voice Coil Diameter4.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)30 Hz
  • DC Resistance (Re)5.1 ohms
  • Voice Coil Inductance (Le)4.6 mH
  • Mechanical Q (Qms)10
  • Electromagnetic Q (Qes)0.24
  • Total Q (Qts)0.23
  • Compliance Equivalent Volume (Vas)9.5 ft.³
  • Mechanical Compliance of Suspension (Cms)0.0692 mm/N
  • BL Product (BL)40.8 Tm
  • Diaphragm Mass Inc. Airload (Mms)407g
  • Maximum Linear Excursion (Xmax)15 mm
  • Surface Area of Cone (Sd)1,655 cm²
Materials of Construction
  • Cone MaterialTreated Paper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCCA
  • Voice Coil FormerFiberglass
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter21.54"
  • Baffle Cutout Diameter20.0"
  • Depth10.04"
  • Bolt Circle Diameter20.7"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Vented Volume4.5 ft.³
  • Vented F358 Hz
B&C 21DS115 21" Professional Neodymium Subwoofer 8 Ohm
  • BrandB&C Speakers
  • Model21DS115
  • Part Number294-6030
  • UPC848864050614
  • Unit of MeasureEA
  • Weight38 lbs.
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