Speaker Dimple

The biggest problem with the dimples is that they affect dispersion and subsequently imaging.

If you listen to a single speaker at once, you may not be able to detect any difference- as the actual driver is behind the dome. However, if you listen in stereo you will find things to sound erratic and imaging to suffer.

Good luck

The purpose of the dome is dispersion.

It is very possible that your defect is inaudible.