B&C Speakers 21" Professional Neodymium Subwoofer 4 Ohm - 21DS115-4

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Overview
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.The21DS115features a 36 mm long, 4.5 inch diameter 116mm Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 99 dB sensitivity, and over 17 mm of Xvar, 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.

Features

3400 W continuous program power capacity
116 mm 4.5 in four layer aluminum voice coil
30 - 1000 Hz response
99 dB sensitivity
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
Aluminium demodulating ring for very low distortion


Specifications

Nominal Diameter: 530 mm 21.0 in

Nominal Impedance: 4

Minimum Impedance: 3.1

Nominal Power Handling: 1700 W

Continuous Power Handling: 3400 W

Sensitivity: 99.0 dB

Frequency Range: 30 - 1000 Hz

Voice Coil Diameter: 116 mm 4.5 in

Winding Material: Aluminium

Former Material: Glass Fibre

Winding Depth: 36.0 mm 1.42 in

Magnetic Gap Depth: 14.0 mm 0.55 in

Flux Density: 0.8 T


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