Witness the explosion of premium, in-car audio. Not so long ago, the number of speakers in a car and the brand on the head unit were hardly differentiating factors in the top luxury cars and trucks.

After months of stashing extra money away, you finally buy that pair of nice headphones. Or, maybe you step up DJ equipment for the first time. Or, you connect to a speaker in Best Buy. Whatever the ...

How can I get better sound with my stereo? A. First, consider upgrading your speakers. The older speakers that came with most boats are often lower priced and of moderate performance. With time, sound ...