They're a thing of the past for many people, but in this iTunes-driven age, there's a longing for the antique sounds of analog found on cassette tapes.
That demand is literally music to the ears of those at National Audio Co., which is seeing a surge in requests for classic hits on cassette.
"We attribute our success, as I say often, to stubbornness and stupidity," said Steve Stepp, the company's president.
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Cassettes peaked in the late 1980s, but the rise first of compact discs and then downloadable digital files eclipsed them, and by 2001, they accounted for only 4 percent of all music sales. By 2005, worldwide sales had fallen from almost a billion cassettes to fewer than 1 million, according to industry figures.
But audiophiles refuse to be deterred, preferring "the warmth and presence in an analog recording that you will not hear in the digital recording," Stepp said.
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Using relatively old equipment from the 1970s to produce all of its cassettes, National Audio, which opened in 1969, produced 10 million tapes in 2014, according to a Bloomberg report.
"When you compare the two side by side, you will hear the difference," Stepp said.
Correction: An earlier version of this story misidentified the president of National Audio Co. He is Steve Stepp.