I believe it will work that way.
The apple airport express outputs audio through USB and the HRT is a USB dac, so I think it would be fine!
Even the entry level products from HRT will be SIGNIFICANTLY better sounding than the USB output of a macbook.
Best of luck ***disclaimer, I am an HRT dealer, but I also sell a lot of other USB dacs and dollar for dollar the HRT are exceptional.
The apple airport express outputs audio through USB and the HRT is a USB dac, so I think it would be fine!
Even the entry level products from HRT will be SIGNIFICANTLY better sounding than the USB output of a macbook.
Best of luck ***disclaimer, I am an HRT dealer, but I also sell a lot of other USB dacs and dollar for dollar the HRT are exceptional.