 520 hours. So Poston Electronics asks the question, is your car audio experience the best it can be? I mean, come on. You practically live in your vehicle. Poston Electronics is your authorized dealer for Alpine, JL Audio, Memphis, Kenwood, all the names you know and trust. And their highly trained staff will help you select the best equipment to fit your needs and budget. Plus, Poston provides support only a local business can offer. Since 1974. Poston Electronics. 875 Broadway.