B&C R21DS115-4 Recone Kit For 21ds115-4 Neodymium Subwoofer Speaker 3400W 4-Ohms

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B&C R21DS115-4 T.C.
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Product Description

B&C R21DS115-4 Recone Kit For 21ds115-4 Neodymium Subwoofer Speaker 3400W 4-Ohm

This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, higher sensitivity, lower distortion and better overall performance. The 21DS115-4 features a 40mm long, 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 97 dB sensitivity, and over 14.0mm of Xvar, this high energy subwoofer is a significant step forward from similar models in the B&C range.

B&C 21DS115-4 Specifications

  • Lightweight but powerful FEA-optimized neodymium magnet

  • Extremely high BL factor and Xmax for outstanding LF output

  • 14 mm Xmax, 60 mm peak-to-peak excursion before damage

  • 4.5" split winding copper voice coil on fiberglass former

  • Ventilated voice coil gap reduces power compression

  • Aluminum demodulation ring on pole piece reduces distortion

  • Double silicone spider

  • Nominal diameter: 530 mm (21.0 in)

  • Nominal impedance: 4 Ohm

  • Minimum impedance: 4.2 Ohm

  • Nominal power handling: 1700 W

  • Continuous power handling: 3400 W

  • Sensitivity (1W/1m): 97.0 dB

  • Frequency range: 33 - 1000 Hz

  • Voice coil diameter: 116 mm (4.5 in)

  • Winding material: Copper

  • Former material: Glass Fibre

  • Winding depth: 34 mm (1.34 in)

  • Magnetic gap depth: 14 mm (0.55 in)

  • Flux density: 1.15 T