I did it when my speakers were twelve years old. I had to stuff stripped threads with match sticks to re-tighten some screws. Expected to, but I did not hear a difference. I probably should have. My grills are easily damaged going off-and-on, so not looking forward to doing it again.
Anyone tighten the bolts surrounding the drivers?
I did this, and wow the sound became more focused in a good way! Every 6 months also, whathifi magazine recommends it - but don't over do it and damage your speakers.
I am a happy camper now with my 4411 Jbl - it used to sound not clean, but now they just sing their head off in a pretty voice...
I am a happy camper now with my 4411 Jbl - it used to sound not clean, but now they just sing their head off in a pretty voice...