B.A.S.E (Bob Acoustic Surround Enhancement) is a technology developed by Bob Carver, an audio engineer known for innovative audio equipment designs. This technology aims to enhance the stereo soundstage, giving listeners a more immersive and three-dimensional audio experience. It’s used to make the sound appear as if it’s coming from a wider, more enveloping spatial environment, rather than directly from the speakers. This kind of enhancement is often used in the mastering process of audio recordings to provide a richer listening experience.