Though Reinhold Bogner began designing and building amplifiers long before leaving Germany for the U. s. in 1989, his career really took off soon after arriving in Los Angeles.

虽然莱因霍尔德·博格纳开始设计和建设之前离开美国在1989年德国放大器长，他的事业真正起飞后不久抵达洛杉矶。