eqMac

About

eqMac is a system audio processing app for macOS (10.13+, Intel and Apple Silicon). It offers a parametric equalizer, ranging from a free basic mode with bass, mids and treble controls to an expert equalizer with unlimited bands, adjustable gain, bandwidth and multiple filter types, plus graphical controls and a spectrum analyzer. Its Pro features include a per-application volume mixer, reference presets for 4,600+ headphones, spatial audio simulation of different listening environments, separate left/right channel equalization, and customizable UI colors and layout.

Further Pro capabilities include Super Presets that switch automatically based on conditions such as output device or main audio app, and Audio Unit hosting for chaining your own Audio Units with eqMac effects. Volume and balance control works across devices including HDMI, DisplayPort and other outputs, with volume boostable beyond 100%. Support for any audio device is listed as free, covering built-in, Bluetooth, AirPlay 1, USB, HDMI, DisplayPort, Thunderbolt, aggregate and multi-output devices.

eqMac is free to download, with a Pro subscription starting at $3 per month or $30 per year, or a one-time Pro Lifetime License at $40 for one Mac. Features listed as in development or planned include additional audio sources, recording to MP3, keyboard hotkeys, cloud sync of presets and settings, file rendering, virtual output, an HTTP API (free), and remote control from iOS, iPadOS or Android devices on the same local network (Pro).