Helpful article from Technologies for Worship Magazine…

If getting rid of ambient stage noise and raising the comfort level of the musicians is a goal your team is trying to achieve, then you are on the right path with considering IEMs.

The key to success is to know why you are transitioning to IEMs. In-ear monitors make it possible to lower, if not totally eliminate stage volume. This is a huge benefit in any worship setting, and can be crucial in a small church building. Plus, by using IEMs, musicians and vocalists can get a very accurate rendition of what they are doing, and therefore feel more comfortable.

As with anything else, there is a distinct learning curve involved, so the first lesson would be not to put yourself in a pressure-cooker situation where the products are bound to fail your expectations. For example, switching everyone from stage wedges to IEMs for the first time the day before Sunday service is not recommended.