I have been into hi-fi and home cinema for years and never really bothered with descent speaker cable but a few months ago i got a new Nad amplifier and some Kef IQ3's and at first the bass was boomy and treble extremely high and sometimes ear splittingly harsh. I tried everything from running my speakers in to moving furniture and nothing worked, then it dawned on me i was using cheap free cable so i thought I'd take the plunge and spent £30 on 6 meters of QED Speaker Cable Silver Anniversary-XT. I am compelled to write this as a lot of people on here (i was one of them) did not believe speaker cable could make any difference. Well let me tell you IT DOES! my treble is miles and i mean miles better it sounds spot on i can turn it up and listen to my music loud without having to turn it down after a few minutes with it hurting my ears. The bass was boomy before and is now tight and so responsive. All this from £5 a meter cable you say? well yes this is why i am writing this believe the hype it really does work i am amazed!!!!