This 21 Ferrite Sub Speaker with its cast alloy basket is ideal for use in Touring, Reggae Bars and Club Systems. Highly respected and widely used but a best-kept secret. The price is sensible because our users do not want to pay for fancy marketing they just need an honest driver at an affordable price. This 21 Sub Speaker is used by professionals globally to deliver sub frequencies. 140 MM Voice coil. Frequency Range 20Hz to 1KHz. Model No: BWP21 8 OHMS. Nominal Diameter 21 inch. Nominal Impedance 8ohm (4 Ohm available – Special Order). Frequency Range 20-1.0KHz. Effective Diaphragm Diameter 470mm. Minimum Impedance 5.4Ohm/3.2ohm. Numbers of layers: 42. Kind of layer: in/out. Top Plate Thickness: 12. Resonance Frequency FS 36Hz. DC resistance Rte 5.4ohm/3.2ohm. Mechanical Factor Qms 9. BL Factor Qes 0.39. Total Factor Qts 0.38. BL Factor BL 34T-m. Effective Moving Mass Mms 353gr. Equivalent Cas Air Load 263 -269 litres. Effective Piston Area sd 1885cm2. R Excursion Xmax 13mm. Half-Space Efficiency Eff 3.2%. Boil Circle Diameter 493mm. Bolt Hole Diameter 7mm. Mount Hole Diameter 552mm. Net Weight 25.2 KGS. The item “21 Ferrite Subwoofer Driver 2000w RMS Power Sub Bass Woofer 8 ohm BWP21″ is in sale since Monday, April 6, 2020. This item is in the category “Musical Instruments\Pro Audio Equipment\Speaker Drivers & Horns”. The seller is “bishopsound” and is located in Ripon. This item can be shipped to United Kingdom, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Brazil, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Dominica, Ecuador, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Peru, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay, Viet nam, Cayman islands.
- Brand: BishopSound
- Type: 2000w RMS
- MPN: BWP21