What is the fine-grained topic of the following text: While designed to be paired with the Russound AW4-LS-BR landscape satellite loudspeaker, the unobtrusive design of the AW10-LSUB-BR after installation means that this powerful subwoofer can be easily added to any outdoor audio system. Only return the topic.
Adding the AW10-LSUB-BR subwoofer to an outdoor audio system