Best Answer dboomer , 10 September 2013 - 09:23 AM
There is almost nothing that would be plugged into a mixer anymore that has a problem getting unneeded phantom power.
About the only thing you could find might be old guitar/bass amps that have direct outs or old wireless mic receivers. In these cases you should consult the manufacturer. Microphones are not a problem (except very old and expensive ribbon mics, again not normally used in live sound work)
Most mixers in this price range have an all or none approach to phantom powering. We chose to split it into 2 banks just in case you ind one of those old devices hat might have a problem. This choice is mainly due to real estate. If we added single switchs, which is almost never needed, then something else would have to go.Go to the full post