While recording a sound from my synths to the computer, I use the mixing desk, and there are "pops" all the time, I can't record anything, because of that the track I have recorded today is in really bad quality, I'm desperate

Either this is the mixing desk, it's a cheap crap, to change it would cost me too much... or this is the cable, I hope, I'll try to use another one !!
Do you know where I can find cheap cables with male jack 6,35mm ?

My music, webdev, photos, videos :
www.nicolaskern.fr
Robert Dugenou
Attended :
Teo&Tea showcase in Cannes [France] - 20/05/2007
Théâtre Marigny, Paris [France] - 15/12/2007
<2010> Marseille [France] - 20/03/2010
Monaco - 01/07/2011
Arènes de Nîmes – 14/07/2016