I can certainly agree with the need to connect the iPad directly to the DL32R in the evnt of router failure,
but I do not agree on the request of the USB port being "changed" just so it can charge i-devices.
There are so many other things we bring to the job, mics, stands, cables, speakers, subs, amps....
an iPad charger is insignficant compared to all the stuff we bring and should always be in a case or rack somewhere...
with the correct Apple cable.