My Macbook Pro Right Speaker Kept Going Broken Even After Replacement
This is a well known issue of macbook pro since 2009 and it effects even the latest model. The reason being the macbook speakers are not designed to resist heat. If it has been working for hours over 100 degree (or 30 some celsius idk) the rubber will melt and tear under high volume. The left speaker will less likely to have such condition since the ventilation is better on the left corner. Why does Apple keep using this type of rubber? I guess they want the rubber to be bouncy enough to make decent sound while keep the cost low. Besides Apple products are never built to last anyways. All you can do is to cool your macbook while using it or you can try to use superglue to cover the rubber, which would make it tougher but the sound will be worse. For a quick fix, you can put gel around the rubber or just the place of the torn mark(s). Take a look at this picture. This is how I did it.