Bass Plus is a native macOS audio enhancement and equalizer app for adjusting sound system wide. It provides bass presets called Deep, Punch, Warm, and Balanced, alongside controls for changing the strength of the effect. Users can also shape audio with a 10 band or 31 band graphic equalizer, or a 12 band parametric equalizer with frequency, gain, and Q controls. The app includes A/B comparison, spectrum displays, and saved presets for different headphones or speakers. Additional sound controls include Smart Enhance, Voice Lift, Clarity, Loudness, Night mode, stereo width, simulated headphone space, ambience, and pitch shifting without changing tempo. Bass Plus can raise software volume above 100 percent, though additional gain may cause distortion. Its Safe feature helps limit added overload but cannot prevent distortion in every recording. Dictation Pause can fade and pause supported browser playback when microphone activity is detected, then resume playback that it paused. This feature requires macOS Automation permission and the browser setting Allow JavaScript from Apple Events; calls, live streams, and some players are not supported. Bass Plus is intended for adjusting bass and other audio characteristics during music listening, and for saving different sound profiles for different output devices. It requires macOS 14.4 or later and supports Apple Silicon and Intel Macs. The app offers a seven day trial activated through Apple, followed by a one time purchase for lifetime access, with no subscription.