When it comes to finding alternative terms for "digital audio server," there are a few options to consider. One possibility is to use "audio streaming server," which emphasizes the server's ability to deliver audio files in real-time to multiple devices. Another synonym is "media server," which includes not only audio files but also video and other types of media. "Audio file server" is another option, which emphasizes the server's ability to store and manage audio files. Finally, "audio distribution server" can also be used to describe a device that sends audio signals to multiple locations or devices. Ultimately, the best term to use will depend on the specific context and intended audience.