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Overview
- 5000 W continuous program power capacity
- 153 mm (6 in) split winding aluminum voice coil
- 37 - 1000 Hz response
- 99 dB sensitivity
- Neodymium magnet allows a very high force factor and linear excursion
- Double silicone spider with optimized compliance
- 80 mm peak-to-peak excursion before damage
- Ventilated voice coil gap for reduced power compression
Specifications
- Nominal Diameter: 530 mm (21.0 in)
- Nominal Impedance: 1 ohm
- Nominal Power Handling: 2500 W
- Continuous Power Handling: 5000 W
- Sensitivity: 99.0 dB
- Frequency Range: 37 - 1000 Hz
- Voice Coil Diameter: 153 mm (6.0 in)
- Winding Material: Aluminium
- Former Material: Glass Fibre
- Winding Depth: 48.0 mm (1.9 in)
- Magnetic Gap Depth: 18.0 mm (0.7 in)
- Flux Density: 1.35 T
Design
- Surround Shape: Triple Roll
- Cone Shape: Radial
- Magnet Material: Neodymium Inside Slug
- Spider: Double Silicone
- Pole Design: T-Pole
- Woofer Cone Treatment: TWP Waterproof Both Sides
- Recommended Enclosure: 200.0 dm3 (7.06 ft3)
- Recommended Tuning: 40 Hz
RECOMMENDED CABINET SPECIFICATIONS
- Cabinet Volume: 6.8 cu. ft. / 192.6 Liters
- Inside Cabinet Dimensions: 22" wide x 26" height x 20.5" deep
- Port Size: 22" wide x 2.5" height x 13.875" deep
- Tuning Frequency: 37Hz
MOUNTING INFORMATION
- Overall Diameter: 21.5" / 547mm
- Bolt Circle Diameter: 20.7" / 527mm
- Baffle Cutout Diameter: 20" / 508mm
- Depth: 10.59" / 269mm
- Flange & Gasket Thickness: .51" / 13mm
- No. Of Mounting Holes: 8
- Net Weight: 48.5 lbs./ 22 kg.
- Shipping Weight: 54 lbs./ 24.5 kg.
MATERIALS
- Basket: Cast Aluminum
- Cone: Paper
- Cone Treatment: Waterproof Front & Back
- Cone Shape: Radial
- Spider: Double Silicone
- Surround Shape: Triple Roll
- Former: Glass Fiber
- Pole Design: T-Pole
- Winding Depth: Aluminum
- Magnet: Neodymium
THIELE-SMALL PARAMETERS
- Resonant Frequency (fs): 37 Hz
- Re : 0.7 Ohm
- Qes: 0.22
- Qms: 4.9
- Qts: 0.21
- Xmax: 22.0 mm
- Xvar: 15.0 mm
- Mms: 487.0 g
- BI: 19.1 Txm
- Le: 0.5 mH
- EBP: 168 Hz
- Vas: 155.0 dm3
- Sd:1680.0 cm2
Service Kit
- RCK21IPAL
Brand | B&C |
---|---|
MPN | 21IPAL |
Model | 21IPAL |
UPC | NA |
Condition | New |
Featured | Yes |
Speaker Type | Non-Enclosed Subwoofer |
Speaker Size | 21" |
Number of Speakers | 1 |
Mounting Depth | 10.59" |
Peak Power | 5,000 Watts |
RMS Power | 2,500 Watts |
Frequency Response | 37 - 1000 Hz |
Sensitivity | 99 dB |
Impedance | 1 ohm |
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