DuoCast
Multi-output audio for Mac
Route system audio or a local file to up to three outputs, with independent volume, delay and 10-band EQ for each. An Apple Silicon Mac build is available; simultaneous playback on two Bluetooth headsets is not guaranteed, and no Windows installer is available yet.
Quick start
Get running in 30 seconds
This is a macOS app. Download and install to use immediately.
⬇ DownloadRequires macOS 14.2+ on Apple Silicon. The app is ad-hoc signed and not notarized by Apple; capturing system audio requires Screen & System Audio Recording permission.
Preview
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Highlights
Features
Up to three audio outputs with independent controls
Independent volume, delay compensation and 10-band EQ per output
Capture system audio or play a local file without a virtual audio driver
Choose which apps to capture system audio from
Pricing
Free
- macOS app download
- Up to three outputs with independent settings
- Per-app audio capture and saved device settings
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DuoCast is ready. Pick a plan that fits you and get started — or reach out first.