Exclusive Partner Offer: WorshipLeader.com readers receive 30% off custom IEMs from WAVS Custom. It’s not perfect, but it works.”Final ThoughtsBoth universal and custom IEMs can serve worship vocalists well. Universal IEMs offer flexible, entry-level options that are easy to share and quick to use. Custom IEMs, once considered a high-end luxury, are now accessible and affordable thanks to brands like WAVS Custom. If you’re ready to explore custom IEMs, we recommend checking out WAVS Custom.