The recommendation is that PoE+ standard IEEE 802.3at is supported in the switches for all outputs where loudspeakers are connected. To maximise performance, allow full power for each loudspeaker; this is the maximum of Class 4 power (30 W). If possible, choose a switch where LLDP power negotiation can be enabled. For additional information on selecting IP switches, visit:

https://www.audinate.com/learning/faqs