The most common brands that offer these products include Konig & Meyer, Zaor, IsoAcoustics, Ultimate, Fluid Audio, Adam Hall, Behringer, Soundking, Gravity, Omnitronic, Dynaudio, Bespeco, Monkey Banana, Gator Frameworks, Fender, PROEL, Lewitz, Tannoy, Samson, Neumann, Genelec, Alctron, Nowsonic, KRK a Magnat. All brands