I use a pair of Mackie MR-5 connected directly to my desktop onboard soundcard. Everything is less than a year old. Today it starts making "click" noise every 3 seconds. I suspect that it's because of the shitty RCA cable I use. It looks just like this http://www.amazon.co.uk/3-5mm-Jack-Phono-Audio-Cable/dp/B000Q6LSWM/ref=sr_1_2?ie=UTF8&qid=1330806473&sr=8-2 While I don't exactly know what's the cause of the problem, I'm planning to buy a new cable anyway. Any recommendation for a nice cable available in the UK?