An acoustic enhancement system. From the website Electronic Acoustics :
LARES is a unique system which can dramatically improve the listening experience in wide variety of environments. It is a cost-effective means of resolving sound quality challenges in ways that traditional architecture cant easily accomplish. LARES provides natural sound throughout your venue, ensuring that the acoustical quality is exceptional at every seat. With over 200 spaces already using LARES technology for a variety of purposes, it is the most widely used acoustical enhancement system in the world.