The definition of the word cable is “An insulated wire or wires having a protective casing and used for transmitting electricity or telecommunication signals.”. Yawn, right? Here at All Pro AVL, we aren’t that boring. We are excited about cables! After all, the better the cable, the better your sound, or presentation! We stock thousands of cables, from the best manufacturers like Hosa, Elite Core, Rapco/Horizon, West Penn, Belden, and many, many more.