DAC Tester vs AVR Link

You can use this app to test your DAC with different sampling rates, from 44.1kHz to 768kHz, you can also test you headphone or speaker with 0-20khz white noise.

AVR Link gives you fast, convenient control of your compatible AV receiver from your Mac, iPhone, and Apple Watch. Designed with the Marantz AV 10 in mind, AVR Link also works with compatible Denon and Marantz AV receivers that support local-network control over Telnet. Compatibility and available features may vary by receiver model. AVR Link runs as a macOS menu-bar app, with companion iOS and Apple Watch apps for quick access wherever you are. Control the functions you use most: Power & standby control Volume adjustment Mute / unmute Input selection Independent control of Main, Zone 2, and Zone 3 speaker zones Quick access from your Mac menu bar Control from iPhone and Apple Watch AVR Link communicates directly with your receiver over your local network using its Telnet control protocol on TCP port 23. No cloud service or account is required for receiver control. Made for the Marantz AV 10. Built to work with compatible Denon and Marantz Telnet-enabled receivers. AVR Link is an independent third-party app and is not affiliated with or endorsed by Denon or Marantz. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/