It's all fun and games until someone loses an eye, or in this case, their hearing. Even a modest sound system is capable of delivering sufficiently loud sounds to cause significant damage to your hearing over time. Investing in an SPL (sound pressure level) meter can be useful for things like system setup, but it is also an important tool to let you know whether you are indeed getting too much of a good thing. Have fun, but be careful! Discuss "Tip of the Day: Protect Your Hearing" here. Read the article.