All 17-inch MacBook Pro models sport four speakers with two separate speaker modules (left and right), each with two speakers each. Since the system can output a lot of sound, it is very important to make sure screws are properly tightened down. As a mobile product, a loose screw can eventually work itself free, and using the speakers at elevated volumes can also work toward loosening a screw that is not properly installed.

In addition, each speaker is driven by its own amplifier, as is the headphone port. As such, troubleshooting between speaker and left I/O board failures will require some part swapping to pinpoint the problem module (see the Sound heading in Troubleshooting section).

Apple Technologies Explained

Apple Technologies Explained

What is So Great About Apples Design Concepts? There is always a reason why consumers are drawn to a particular brand of product. Apple has the record for drawing people in, and not just Americans, why? Ease of use, thats why.

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