home teaters in trichy A home theater is a system of audio-visual equipment, including a large display and surround-sound speakers, designed to recreate the immersive movie-watching experience of a cinema within a private home. Key components include an AV receiver to process signals, various speakers (front, center, surround, and subwoofer) to create directional and all-encompassing sound, a TV or projector for video, and source devices like Blu-ray players or streaming devices.