This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, less heat, higher sensitivity, higher power handling, lower distortion and better overall performance. The 21DS115 features a 40 mm long, 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 99 dB sensitivity, and over 16.5mm of Xmax, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of our 6” voice coil alternatives.
Nominal Diameter 530 mm (21 in)
Minimum Impedance 6.6 Ω
Continuous Power Handling 3400 W
Frequency Range 35 Hz - 500 Hz
Winding Material Aluminium
Winding Depth 40 mm (1.57 in)
Flux Density 0.8 T
Nominal Impedance 8 Ω
Nominal Power Handling 1700 W
Sensitivity 99 dB
Voice Coil Diameter 116 mm (4.5 in)
Former Material Glass Fibre
Magnetic Gap Depth 14 mm (0.55 in)
Woofer Cone Treatment TWP Waterproof Both Sides
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