Recone Kit for 69XL750NB-4 Bring your speaker back to life with DS18’s 69XL750NB-4RCK. This drop-in recone kit is designed for 69XL750NB-4 speakers and includes all the necessary parts to recone your speaker. Simply use CA glue and E6000 adhesive to securely attach the new components to your existing basket and magnet.