Altec Voice of the Theater is a series of loudspeakers that were first introduced in the 1940s and widely used in cinemas, recording studios, and live music venues for several decades. The Voice of the Theater speakers were known for their high volume capability, clear sound quality, and durability. They were particularly popular in the 1950s and 1960s and were often used for playing music in rock and roll concerts.

While the Altec Voice of the Theater speakers are no longer manufactured, they remain a popular choice among vintage audio enthusiasts and collectors. Many music producers and sound engineers also consider them to be legendary due to their contribution to the development of high-quality audio technologies in the early days of the music industry.