B&C Speakers RCK21SW1154 Rebuilding and RECONE KIT for 21SW115 21-in Professional Neodymium Subwoofer Speaker Driver 4 Ohms Impedance || HIGHLIGHTS | B&C Speaker RECONE KIT for 21SW115 4 Ohm | 4 Ohm Impedance | Subwoofer Speaker Driver | Cone | Gaskets | Centering shims | B&C Speaker R21SW115-4 || Kit includes: preformed treated edge paper cone with attached spyder, coil, coil leads, rolled edge. * Included center dust cap * Included cone water proofing bottle * Included top rubber edge gasket four sections * Heat shrink insulating tubing two half inch sections * Four ohm coil section (Kit requires cone mounting speaker repair adhesive not included) || DIMENSION : | Box Length : 21 inches | Box Height : 4 inches | Box Width : 4 inches | Weight LBs : 10 lbs || | Every product from B&C speakers is 100% Quality tested before it is packaged and shipped. | All components are electronically tested for rub and Buzz issues. | We also perform a set of measurements on every component to ensure that their frequency response and electrical impedance fall within established tolerance Windows. | B&C Speakers has been one of largest and most prestigious professional loudspeaker transducer || B&C Speakers has been one of largest and most prestigious professional loudspeaker transducer manufacturers in the world. In addition to designing and distributing components under the B&C brand name, they also supply OEM components to many of the top professional audio brands in the market today.