B & C SPEAKERS NA LLC 21SW152-4 21 in. Neodymium Subwoofer
MSRP:
$1,298.70
$999.00
Large format 21" subwoofer, the 21SW152. This next generation 21" subwoofer transducer features a newly designed, ventilation optimized chassis. The 150mm (6") split winding voice coil safely allows over 60mm (2.5") of controlled peak-to-peak excursion. The 21SW152 is rated at 4000W continuous power (2000W AES) with a sensitivity of and 97 dB 1W/1 m.
21" Neodymium Sub Woofer - 6" Voice Coil - 2000 Watt.
4000 W continuous program power capacity.
153 mm (6 in) split winding copper voice coil.
30 - 1000 Hz response.
97 dB sensitivity.
60 mm peak-to-peak excursion before damage.
Neodymium magnet allows a very high force factor and linear excursion.
Double silicone spider with optimized compliance.
Ventilated voice coil gap for reduced power compression.
Aluminium demodulating ring for very low distortion.
Nominal Diameter 530 mm (21").
Nominal Impedance 4 ohm.
Minimum Impedance 4.3 ohm.
Nominal Power Handling (AES) 2000 W.
Continuous Power Handling 4000 W.
Sensitivity (1W/1m) 97 dB.
Frequency Range 30 - 1000 Hz.
Voice Coil Diameter 153 mm (6").
Winding Material Copper.
Former Material Glass Fibre.
Magnet Material Neodymium Ring.
Winding Depth 30 mm (1.18").
Magnetic Gap Depth 12 mm (0.5").
Flux Density 1.2 T.
Parameters:
Fs: 35 Hz.
Re: 3.3 ohm.
Qes: 0.33.
Qms: 7.3.
Qts: 0.32.
Vas: 176 dm3 (6.15 ft3).
Sd: 1680 cm2 (260.40 in2).
?0: 2.4 %.
Xmax: ± 15 mm.
Xvar: ± 16 mm.
Mms: 437 g.
Bl: 32 Txm.
Le: 1.4 mH.
Mounting Info:
Overall Diameter: 547 mm (21.5").
Bolt Circle Diameter: 527 mm (20.7").
Baffle Cutout Diameter: 508 mm (20").
Depth: 261 mm (10.3").
Flange and Gasket Thickness: 0.63 mm (16").
Design:
Surround Shape Triple Roll.
Cone Shape Radial.
Magnet Type Neodymium Ring.
Spider Double Silicone.
Pole Design.
