18 June 2020 Do I need a microphone for the ESX-1? A Do I need a microphone for the ESX-1? In general, yes. In quieter settings the ESX-1 will be plenty audible, but like a vocalist, it cannot compete with an amplified instrument’s volume level. A traditional dynamic vocal microphone is perfect for amplifying your sound. | Share Post Leave a Reply Cancel ReplyYou must be logged in to post a comment.