Actually, Transparent does have a whole line of in-wall products, and they're excellent . . . I think that they have stuff in your price range. All of their cables are plenum-rated, so they can be used in both residential and commercial.
They have accessories such as wall plates and Speakon connectors available, and you can add a network later as an upgrade option.
They have accessories such as wall plates and Speakon connectors available, and you can add a network later as an upgrade option.