I was wondering if this was a real issue or something that is exaggerated. My wired IEM systems have analog heaphone amps at each musician/singer's mic stand and the amp allows microphone and instruments "pass through" on the way to the mixer in order to give the individual performers "more me" control with associated knobs. So the sum total of signal going to the IEM from the headphone amp (Rolls PM351) is the aux send from the mixer, the singer's mic, and their instrument.
So I have heard that latency from the digital mixer will cause a problem with the sum of the signals being out of phase, or more specifically, the aux send coming in would supposedly be out of phase with the pass through signals.
Is this true? If so, would the latency cause a phase shift problem, creating a strange effect into the IEM's?
I asked this over at Presonus and they told me that their mixer would only have no audible effect. Here is what he said:
"The input to output latency on the StudioLive is about 1.8ms. You're not going to notice any latency from any post converter output on the mixer."
So what's the deal here?