Lectrician said:I have commonly used twin 1mm flex and larger for speakers - I can't see the problem at all.
Look at what they give you with a new stereo....
Are you saying you can't see the problem with bell wire, or you can't see the problem with spending 69p/m? Certainly you'd be spending 69p/m on 1mm twin flex if you bought if from a high street hardware store.