2. Taylor Guitars
Taylor has been manufacturing guitars in San Diego since 1974 and not only do they make some of the best sounding guitars, they are also responsible for creating the first major innovation in the construction of an acoustic guitar in 100 years. All sorts of famous musicians, from Prince to Jewel, play Taylors. By the way, you can thank SD for Jewel, too. She was discovered in a local coffee house, probably while playing a Taylor.