OC Backline Rentals OC Backline Rentals is a Premier Backline Rental Service Company centrally located in Irvine, Orange County, CA. Live Shows, Studio, Tours, Private Events, Corporate Events, Festivals. Our backline equipment features some of the most iconic brand names in entertainment including DW, Yamaha, Pearl, Tama, Gretsch, Ludwig, Zildjian and Sabian, Ampeg, Aguilar, Fender,