ESI Audiotechnik GmbH, located in Leonberg (Germany), is developing and manufacturing professional audio products with a focus on the semi-professional and professional user. Our products are developed and produced at various locations around the globe including several locations in Germany. ESI has been making professional audio products for over a decade now. Today, ESI is one of the leading vendors for professional and semi-professional audio equipment worldwide. Our ESI branded and various OEM products developed by us are well known and used daily by hundreds of thousands of customers everywhere in the world and produced and brought to market by ESI Audiotechnik GmbH.