The Complete Home Cinema Guide
From screen size to speaker placement ā how to build a cinema that rivals the multiplex.
Why a dedicated home cinema?
A living room with a big TV is not a cinema. A cinema is a room designed around the experience of watching films ā where the picture, sound, lighting, and seating all work together to transport you. The best home cinemas do not just look impressive. They feel immersive in a way a normal room never can.
Whether you have a spare bedroom, a basement, or are planning a new build with a cinema in mind, this guide covers what matters and what does not.
Screen: TV or projector?
For screens under 85 inches, a high-end OLED or QLED TV usually wins. The brightness, contrast, and simplicity are unbeatable. But once you want 100 inches or more ā which is where cinema really starts ā a projector is the only practical choice.
Projector considerations:
- Throw distance: Short-throw projectors sit close to the screen; standard throw needs 3ā4m. Your room dimensions dictate what works.
- Light control: Projectors need darkness. If your room has windows, motorised blackout blinds are essential.
- Screen type: Fixed-frame screens are best for dedicated rooms. Motorised screens suit multi-use spaces but add cost and complexity.
- 4K and HDR: All modern projectors are 4K, but HDR performance varies. JVC and Sony lead for contrast; Epson offers excellent value.
Audio: The speaker layout
Dolby Atmos is the current standard for home cinema audio. It adds height channels to traditional surround sound, creating a 3D dome of sound around you.
Common Atmos configurations:
- 5.1.2: Five ear-level speakers, one subwoofer, two ceiling speakers. Good starting point.
- 7.1.4: Seven ear-level, one sub, four ceiling. The sweet spot for most dedicated rooms.
- 9.1.6: Nine ear-level, one or two subs, six ceiling. For large rooms and serious enthusiasts.
Speaker placement matters enormously. Your installer should measure and calculate angles from the primary listening position (the "money seat"). Side surrounds should be at 90ā110Ā°, rear surrounds at 135ā150Ā°, and ceiling speakers roughly overhead with spread for coverage.
Acoustics: Why it matters more than expensive gear
The room itself is the most important component in your cinema. A Ā£20,000 speaker system in an untreated room will sound worse than a Ā£5,000 system in a properly treated one.
Key acoustic treatments include:
- Bass traps: In corners, to control low-frequency buildup that makes bass boomy and uneven
- Absorption panels: On first reflection points (side walls, ceiling), to reduce echo and improve dialogue clarity
- Diffusion: On rear walls, to scatter sound and create a sense of spaciousness without adding echo
- Carpet or thick rugs: Essential for floor reflection control
Seating and sightlines
Home cinema seating is about more than comfort ā it is about sightlines and audio performance.
- Row spacing: Allow at least 1.2m between rows. Riser platforms (stepped floors) for second and third rows.
- Screen height: The centre of the screen should be at eye level when seated. Tilting the screen down slightly helps if it must be higher.
- Viewing angle: SMPTE recommends no more than 35Ā° vertical viewing angle. Beyond that, neck strain becomes an issue.
- Seat count: Two rows of three is common for a 5m-wide room. Do not cram in more seats than the audio sweet spot can cover.
Lighting and control
Cinema lighting should be invisible when the film starts and helpful when it stops. The ideal setup uses cove lighting in the ceiling, step lights for safety, and maybe wall sconces for atmosphere ā all dimmable and controllable as part of a "cinema" scene.
Your control system should automate the sequence: press "Watch Film" ā lights dim to 5% over 10 seconds ā projector warms up ā screen descends ā AV receiver selects input ā film starts.
Budget reality check
| Level | What's Included | Budget |
|---|---|---|
| Good | 65ā77" OLED, 5.1 soundbar or entry surround, basic lighting | Ā£8,000āĀ£15,000 |
| Better | 100ā120" projector, 5.1.2 or 7.1 Atmos, acoustic treatment, cinema seating | Ā£25,000āĀ£45,000 |
| Best | 150"+ 4K laser projector, 7.1.4 or 9.1.6, full acoustic design, tiered seating, control system | Ā£50,000āĀ£120,000+ |
Common mistakes to avoid
- Buying the screen before measuring the room. Always design the layout first.
- Ignoring ventilation. Projectors and amplifiers generate serious heat.
- Putting speakers in the ceiling for a "cinema" room. In-ceiling speakers work for Atmos height channels, not front or surround channels.
- Skipping the demo. Visit a finished cinema before you commit. What looks good on paper may not feel right in person.
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