Can horn players use UE PRO IEMs? Follow YES! In-ears are for everyone who wants to perform better. For horn players, we suggest adding the ambient ports in order to reduce pressure. Learn more here. Related articles Do you offer artist endorsements? Are more drivers better? How long does it take to manufacture UE Pro Custom In-Ear Monitors? Are the UE Pro Remastered Reference Monitors truly flat? Which UE Pro In-Ear Monitors are recommended for a singing drummer?