21″ B&C Subwoofer DS115 4Ω|8Ω
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 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.
Key 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
Teirautis telefonu
+37069873838
darius@combo.lt
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Specifications
Nominal Diameter: 530 mm (21 in)
Minimum Impedance: 3.1 Ω
Continuous Power Handling: 3400 W
Frequency Range: 30 Hz – 1000 Hz
Winding Material: Aluminium
Winding Depth: 36 mm (1.42 in)
Flux Density: 0.8 T
Nominal Impedance: 4 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
Parameters
Fs: 30 Hz
Qes: 0.2
Qts: 0.21
Sd: 1680 cm² (260.4 in²)
Xmax: 15 mm
Mms: 412 g
Le: 2.4 mH
Re: 2.2 Ω
Qms: 11
Vas: 274 dm³ (9.68 ft³)
η₀: 3.4 %
Xvar: 17 mm
Bl: 28.8 Tm
EBP: 150 Hz
Design
Surround Shape: Triple Roll
Magnet Material: Neodymium Inside Slug
Pole Design: T-Pole
Recommended Enclosure: 130 dm³ (4.59 ft³)
Cone Shape: Radial
Spider: Double Silicone
Woofer Cone Treatment: TWP Waterproof Both Sides
Recommended Tuning: 40 Hz
Mounting and Shipping Info
Overall Diameter: 547 mm (21.54 in)
Baffle Cutout Diameter: 508 mm (20 in)
Flange and Gasket Thickness: 13 mm (0.51 in)
Net Weight: 14.7 kg (32.41 lb)
Shipping Weight: 17 kg (37.48 lb)
Bolt Circle Diameter: 527 mm (20.7 in)
Depth: 255 mm (10.04 in)
Air Volume Occupied by Driver: 15 dm³ (0.53 ft³)
Shipping Units: 1 pcs
Shipping Box: 570x570x320 mm (22.44×22.44×12.60 in)
Service Kit
Recone Kit: RCK21DS1154
Cone
Gasket
Centering Shims
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