What is the default solo mode for API Legacy Plus?

The default solo mode for API Legacy Plus is AFL. This mode allows for efficient audio channel management during live performances, ensuring that individual audio tracks can be manipulated without affecting the other tracks. AFL stands for "After Fader Listen," where the audio signal is monitored post-fader, providing a direct way to listen to the output of a channel after its level has been adjusted.

In this context, it is important to understand the significance of using AFL as the default setting. By using this mode, audio engineers can gauge the sound quality and levels effectively, making adjustments as needed without disrupting the live mix for the audience. The functionality helps in maintaining a clear and balanced audio performance.

Each of the other choices represents different modes, such as PLF (Pre-Fader Listen) and SIP (Solo In Place), but AFL is specifically designed to be the standard because of its effectiveness in real-time audio management in various sound engineering scenarios.