Use the project requirements to narrow the category. Compare conductor gauge, run length, speaker load, in-wall or plenum rating where required and termination method. Where several products appear similar, prioritize the option that fits the existing architecture, connection method and installation environment. This is especially important for components that form part of a larger managed, networked or controlled system. For in-wall, plenum, outdoor or other regulated cable runs, confirm the required jacket and installation rating before ordering.