FxSound exists for Windows; on macOS, there are driver-based options (eqMac, virtual HAL device settings) or paid options.

Instead, Vooster uses the Core Audio processing API (macOS 14.4+): it taps into all system sound in mute mode, processes it, and plays the results to your output device

— no need to install drivers, no hacking coreaudiod, no administrator privileges. 10-band EQ feature

— RBJ peak filter, 31.5 Hz–16 kHz, ±12 dB, mouse-free gain factor Presets - 6 presets (Flat, Bass Boost, Vocal, Treble Boost, Electronic, Rock) + save your own Volume boost

— up to +12 dB past system limits, with a peak limiter tied to stereo so it never clips Stereo expansion

— mid/side processing, 0% (mono) to 200% Clarity - high-frequency exciter (4 kHz high pass → soft saturation) for bass sources Bypass switch - instant A/B comparison to original sound Survive device switching – headphones, AirPods, speakers; pipeline is rebuilt automatically Remember everything - EQ curve, effects, bypass state is restored on launch Launch at login