There is no such thing as an audio network switch. They ALL work on digital mostly ethernet packets. It is LUDICROUS to think otherwise.
PS: I worked for Cisco for 17 years as a software technical lead and I am now at Broadcom as a principal software engineer, who makes the chips for these switches.
It doesn't matter that you work at the ASIC level. It doesn't matter if you understand clock domain boundaries. It doesn't matter that the base clock for Ethernet is 25Mhz (WAAAAY beyond hearing). It doesn't matter that there are PCI-e bus, USB bus, FSB, CPU clocks, paging going on constantly. All that sitting between the Ethernet port and the input on the DAC.
It doesn't matter that 10Gbe that is routinely affordable now can transfer ~ 2 CD's worth of information in a single second and you can pull the cable on many playback computers and appliances and the music will still play.
But go on ahead and keep presenting logic. Could you get one of your PHY guys into the thread?