Hi matthultberg,
Thanks for posting in Apple Support Communities.
It sound like Bluetooth on Mac is connected to your receiver, but sound is not playing correctly. Make sure paired devices have the most recent firmware installed and any necessary drivers are also installed.
Change the sound output on your Mac.
1. On your Mac, choose Apple menu
> System Settings, then click Sound
in the sidebar. (You may need to scroll down.)
2. Click Output on the right, then select the device you want to use in the list of sound output devices.
3. All sound output devices available to your Mac are listed, including the computer’s internal speakers, devices plugged into your computer’s sound port (
), USB speakers, and AirPlay devices.
4. For any device plugged into the computer’s sound port, choose Headphones.
5. Do any of the following to adjust your sound output settings:
* Adjust the volume: Drag the Output volume slider.
* If you have Sound in the menu bar, you can turn the volume up or down from anywhere.
* To set a volume for alert sounds, drag the Alert volume slider in Sound Effects. The alert volume is relative to your computer’s volume, so if you lower the computer’s volume, alert sounds also play more quietly.
* Stop sound output: Select the Mute checkbox.
* Adjust the balance: Drag the Balance slider.
Change the sound output settings on Mac - Apple Support
Regards.