Infinity Systems is an American manufacturer of loudspeakers founded by Arnie Nudell, John Ulrick and Cary Christie in 1968. Since 1983, Infinity has been part of the Harman International Industries group.

Founded in 1968, Infinity has produced affordable home and mobile/car audio solutions by innovating materials used in loudspeaker production, such as neodymium magnets, and polypropylene cone and surround materials.

In recent years, Infinity speaker designs have taken a simpler, and more conventional approach. While not as elaborate or high end as previous Infinity efforts, they represented a popular consumer niche.