Hi guys, I've had a pair of Acoustic Energy AElite Three floorstanders for a few months now.
I've recently noticed that the bass cones of my speakers are producing an undesired kind of high pitched flicker, just like the kind of undesirable clicking sound you get when you drop below about 18hz. However, i've never noticed this sound before, also my speakers aren't suppost to go below 30 odd hz.
What can cause this? Or is it just that i've gotten used to it?