Almost 2 years on my vvx8 v3 subwoofers, and a wire or something came loose on a voice coil, never poped or rattled and still moves smooth, just quite, so I ordered a pair of zvx 8 take the same boxes but handle more than double the power and after they are broke in, can turn the settings up alot more on my amp, and using the boxes to send the vvx 's back under warranty.
​​​​