They are mechanical devices.
At the other end of the bell curve they will sound awful too. :rotfl:
Fortunately JBL loudspeakers are built like a fine musical instrument, and all that garbage :blah: :blah: :blah:, so you'll be long gone when they reach the end of their life cycle. Your great grandchildren will say "What in hell's half acre did great grandpa see in these things!" :screwy: