I have done some research into the question of cables and Tannoy Prestige, since I have lived with Kensington SE for 5 years and now for the last months Kensington GR. Tannoy states that they use Oyaide, but I also have heard rumours of they using LFD cables in critical sections of both SE and GR. I am not sure of this but Kensington uses silver to the horn tweeter and cobber to the bass. A couple of years ago I picked up LFD biwire silver reference. It is a cable that uses solid-core silver to HF and cobber to bass  as inside Kensington. After this I have never looked for another speaker cable for Kensington. It just sounds right.