Mics will work fine. It's the "other" stuff you have to worry about. Anything that's plugged into the board that's "not" a mic. Like, a drum machine. Or an effects unit. Or even an active DI. As a general rule, anything with a transformer output will work fine with phantom power. But, I'd be careful with anything that has a solid state output (and that would include the "direct" outputs or "line" outputs from most bass amps). Note that the TRS ins usually don't carry phantom power (only the XLR ins usually do), so you might read the manual for your board to determine whether this is the case. You can isolate any input from the board using a 1:1 line transformer (check the schematics and white papers section at jensen-transformers.com for some simple solutions).
