It must have been around 1988 when I bought my first pair of Koss Porta Pro, on the recommendation of an audiophile friend. In fact, for many people of my generation, the Koss Porta Pro was a widely used upgrade to the bog-standard headphones that came with the first Discman (or worse, the Walkman headphones that could be found on every teenager’s bedroom floor).

At the time, online shopping was still in its infancy, so I bought the headphones from a trusted hi-fi shop.
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