Home audio-visual room generally needs the following equipment: audio equipment, video equipment, signal source equipment. I suggest you find a local dealer to listen to the experience, listen more and ask more questions, and then find a professional construction and installation team.
Audio equipment
Front main speaker, center speaker, rear surround speaker, amplifier audio, subwoofer speaker.
Video equipment
Projector, curtain or laser film and television or other short-focus projectors.
Signal source equipment
Blu-ray player