Klotz, professional audio cables.. Optical, multipole, pairs, analog and mic. Here is our full range of Klotz cables! Buy a 100 m reel and get a 10% discount on your cart. Shop our section of customisable audio cables! You can create cables in different lengths, using the best components from different brands. In this section you can find the full range of Klotz products. The main product lines are butted cables.