Sound of Tri State (Philadelphia), Claymont

Whether it's to keep the tunes bumping while cruising down the freeway or to blast speeches from Stand and Deliver while parked outside the local high school, a car needs a good audio system. Since 1990, Sound of Tri-State has been equipping cars with high-end speakers, subwoofers, and other audio gear. They also outfit cars with everything from window tints to remote car starters, which can make interior temperatures more comfortable before drivers hop in.

In addition to providing vehicles with accessories, Sound of Tri-State Marine supplies DJs with turntables and headphones and homes with sound systems.