I would like to run some speaker cable up the corner of the room.

Ideally I would like triangular section or "quarter circle" (that is a
quarter slice of a round cake) profile.

My Google skills don't seem to be up to finding any, and Wickes and
Screwfix don't seem to stock any.

Is the answer to use square/oblong profile (which won't look quite as
neat) or is there a supplier hiding from me?

Cheers

Dave R



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Windows 8.1 on PCSpecialist box