Common types include:

• Home-theater-in-a-box (HTiB): All-in-one solution.
• Component systems: Custom setup with separate AV receiver, speakers, etc.
• Soundbars: Simplified audio upgrade.
• Smart/projector-based theaters: Minimalistic setups for small spaces.

Not necessarily. A dedicated room offers optimal acoustics and light control, but you can create a great setup in a living room with some adjustments.

• 5.1: 5 speakers + 1 subwoofer (standard).
• 7.1: 7 speakers + 1 subwoofer (more immersive with rear surrounds).