Could this be a 'giant-killing' tonearm cable?

[MikeMusic]

Hehehehe... No, it's actually rather more mundane. It simply stands for 'Stereo Pick-Up'

Here's an interesting article to read, giving the history of the (now) iconic Ortofon SPU: http://www.ortofon.com/about-ortofon...ert-gudmandsen

Marco.

Thanks. A long history