Anyone seen these speakers before?

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from this page: http://www.bigearsaudio.org.uk/speakers/second_hand_speakers.html

This is what they say:

These amazing sounding speakers comprise of a 15" bass speaker and an 8" full-range unit, both are very good quality and are housed on a sheet of 12mm perspex. Sensitivity is around 92db so they are easy to drive as well as sounding exceptional.

Looks interesting