macbook prosound-volumespeakers
I can find official documentation about how loud the operating noise on a MacBook Air is
and information about the speakers
but no official documentation about how loud the speakers can be. Is there any official report from Apple about the maximum amount of decibels the speakers on any of its computers can produce? If not, what would be the best way to answer this question?
Try the Boom system-wide volume booster tool. While it's not free, it is cheap: $6.99. See reviews here, here, and here. Below is the description from the product page, and a screenshot:
Boom is a simple volume booster and system-wide equalizer that lets you boost the volume of your Mac and your music files.
Using Boom is simple. You know the ways to change the volume of your Mac. Boom provides the same easy access to boost sound.
From the videos on YouTube, Hulu, your favorite music playing on iTunes, to voice applications like Skype, iChat and your favorite Games, Boom can boost them all. [...]
(emphasis above is mine)
I use Boom on my own MacBook Air and it does a reasonable job of increasing the internal speaker volume beyond what I was getting with the built-in volume controls at maximum. The graphic equalizer is an added bonus, letting me tweak the sound I get from these tiny speakers so it sounds a bit better for music.
Apple only provides a few recommendations.
Use the computer on a hard surface:
Using the computer on a soft surface like a couch, pillow, bed, or your lap can trap heat requiring higher fan activity. Using the computer on a hard flat surface like a table or desk allows for optimal radiation of heat.
Don't block the fans:
Make sure the vents remain unblocked to allow your computer to perform at its best.
On the MacBook Air, the fans are located in back.
Best Answer
Output statistics such are usually reported as Watts. This sounds like what you are looking for. This is, unfortunately, a totally worthless data point, and the reasons why are beyond the scope of an answer on this forum.
Your best bet for measuring output, such as decibels/watt/meter, is an SPL (sound pressure level) meter. This would give you the best data set of output at different volumes and distances with different types of audio. You can actually get one for iOS right here that can measure the output of your speakers.