The dell dj audio cables are made from top grade materials. It is hard to beat the quality of dell dj audio cables and the signal quality from them is second to none. The only question you really need to ask yourself when buying dj audio cables from dell is how long can these cables be before there occurs a loss in signal quality.
Well with the dell dj audio cables you won’t really have a problem with poor signal quality no matter what length you choose. What you will have to keep in mind though is that high impedance microphones and feeds coming from high impedance instrument pick ups as a general rule of thumb should be no longer than about 5 meters. The cable capacitance may very likely cause high frequencies to be attenuated where-as low impedance cables can be up to hundreds of meters long providing the source impedance is low plus send and receive devices are designed correctly. It goes without saying that it is still sensible practice to keep all cables running as short as possible.
Also, keep all cables, especially speaker cables, away from most all metals, in particular steel, is ideal. A conductive metal may likely short out an electric field and distort magnetic ones, while a ferrous metal will definitely affect plus distort either types of field. To prevent the worst of any distortions when using your dell dj audio cables be sure to keep them a couple of inches away.