A worker assembles tweeters for speakers at Burmester Audiosysteme in Berlin, which sells top-of-the-line sound systems starting at $4,000 and rising to $460,000. The company is designing exclusive surround-sound systems for Porsche. (Daniel Pilar/Special to The Washington Times)

A worker assembles tweeters for speakers at Burmester Audiosysteme in Berlin, which sells top-of-the-line sound systems starting at $4,000 and rising to $460,000. The company is designing exclusive surround-sound systems for Porsche. (Daniel Pilar/Special to The Washington Times)