Top range of speaker cables complying to the CPR Euroclass requirements up to B2ca.LSZH Speaker cables Belden Speaker cables use OFHC conductors offer Top Performance.Belden LSZH OFHC Speaker cables answer the need for an CPR Euroclass rated, high-end speaker cable with distinct performance and installation benefits. The copper conductors of Brilliance Low Cap OFHC Speaker cable have been manufactured using an upright shaft manufacturing process. The result of this process is a high-conductivity copper conductor that is inherently free of impurities. Euroclasses are uniform assessment methods or classifications that reflect real-life environments for building products based on reaction-to-fire performance. Based on the cables performance, it is placed into the Euroclass system that indicates its behaviour during a fire.