Your Omen Def’s don’t have a cross over just a cap on the tweeter. The 10” drivers are reported to be indestructible. There are two kits available from ZU if you want to upgrade them to match the Omen Def Supremes which I have. One is an upgraded tweeter with an upgraded cap for said tweeter. The other is a wide plinth that perfectly sets the air gap for the ports under the speaker and provides a more stable bass.
How long should high quality speakers last?
My Zu Omen Def MKii (rev B) are going on 13-14 years old. The speakers sound wonderful. I have no intention of parting with them. The speakers came with the latest ZU tweeter design. How long should I expect the speakers to last without any issues? I do not abuse the speakers and run them with my Luxman 595ase amp.