I have used quite a lot of speaker cable to find something I liked from QED, Atlas, Shark, Ecosse but the two I have liked best were the cheapest CAT5 and Van Damme Blue Series. I have been using 2 1/2 metres per cable of the biwirable 4 core 4mm Van Damme and also 2 1/2 metres of 6 lengths (each) of CAT5 braided together. Listening to both in the last month I have decided both cope with treble very well and are very difficult to seperate. However I think CAT5 is better when it comes to bass as it sounds as tight as a drum when listening to the likes of Portishead, with the Van Damme it just doesnt sound as clear and as controlled. However it is still a great deal better than the horribly expensive QED silver anniversary. Maybe I have not got the configuration with the Van Damme cable width and length wrong but at the moment for hifi purposes I would still recommend CAT5 as being superior.