Building a home cinema: the core components

By Jonno Fraser · Updated 19 June 2026

The backbone of a proper home theatre — a capable AV receiver, a subwoofer that does the heavy lifting, and a true 4K projector.

Denon AVR-X3800H AV receiver

A great home cinema is engineered, not assembled — and it''s built around three things doing the hard work: a processor/receiver to decode and steer the sound, a subwoofer (or two) to deliver the impact you feel as much as hear, and, for the full effect, a true 4K projector on a proper screen. Get those right, in a room you''ve thought about acoustically, and everything else falls into place.

These are dependable cornerstones for a mid-to-high-end build. Planning a dedicated room? Our team can help you scope it — see our home theatre hub.

At a glance

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Remember the order of priorities: room first, then bass, then everything else. A single great subwoofer properly placed and calibrated beats two cheap ones in the corners; two good ones beats one. And budget for acoustic treatment from the start — it''s the upgrade nobody photographs and everyone hears.

Common questions

What should I spend money on first?
The room and the bass. Acoustic treatment and a properly integrated subwoofer transform a system more than almost any electronics upgrade.
One subwoofer or two?
Two well-placed subs smooth out room modes so every seat gets even bass. Start with one excellent sub; add a second when budget allows.
Do I need a projector, or will a TV do?
For a true cinema scale (100"+), a 4K projector in a light-controlled room is unmatched. In a bright living room, a large high-end TV may be the better call.
About the author
Jonno Fraser
Jonno Fraser
Home Cinema & Custom Install Editor · Brisbane, QLD

G'day, Jonno here. I spent the better part of twelve years as a custom installer building theatres — everything from a media room squeezed into a Queenslander to a fully blacked-out, acoustically-treated cinema with a hundred grand of gear behind the screen. The thing nobody tells you is that the room matters more than the boxes, and I'll bang on about acoustics until you're sick of me. If you're planning a theatre, talk to me before you spend a cent on speakers.

Ex CEDIA-trained installer; dedicated-theatre and Atmos specialist