SEC D / MEP & UTILITIES
Home cinema room construction and acoustics in Bali
Good sound is a construction outcome before it is an equipment one. A room with parallel concrete walls, a tiled floor and a glass door will humiliate any amplifier you put in it, and no amount of calibration fixes a bass leak into the bedroom next door. We build the room itself — isolation, geometry, damping, silenced cooling and the conduit for the kit — then hand it to your integrator to fill.
- Isolation built into the structure, not stuck on after
- Silenced cooling for a sealed tropical room
- Room measured at handover: reverberation and noise floor
The division of labour is deliberate. Integrators specify and commission the electronics, and the good ones on this island do it well. What nobody can do from a rack cupboard is decouple a ceiling, move room dimensions off a modal null, build a bass trap into a soffit, or route a silenced air path so the fan coil stays inaudible during quiet dialogue. Those are wet-trade decisions, taken at drawing stage and impossible to retrofit cheaply.
So we work backwards from what the room has to achieve: a noise floor low enough that a whisper carries, reverberation around 0.3 seconds so dialogue stays intelligible, bass that stops at the wall instead of touring the house, and enough spare conduit that the next generation of cables can be pulled without opening a single panel. Then we measure the finished room and give you the numbers rather than adjectives.
Why a concrete house is a difficult room
Most buildings here are built the way this climate rewards: heavy masonry, hard plaster, stone or tile floors, large glazed openings. Every one of those choices works against a cinema. Hard parallel surfaces produce flutter echo and long reverberation that smears dialogue. Rigid masonry couples bass straight into the structure, which is why the room three doors away often hears the film more clearly than anyone would like. Glass leaks sound in both directions.
Fixing it is a build, not a purchase. We add an inner leaf on isolation so the room becomes a box touching the structure as little as possible, and choose dimensions that spread room modes instead of stacking them. Absorption goes at the first reflection points, diffusion at the rear, and the floor gets a build-up that stops footfall arriving through the slab. The result is a room already under control before a single speaker is switched on.
The tropical problems nobody mentions
A sealed acoustic room in Bali has two enemies that temperate design guides ignore. The first is cooling: the room needs it constantly, and a split unit hanging on the wall creates a noise floor no amount of treatment will hide. We put the fan coil outside the acoustic shell, feed the room through lined plenums and oversized low-velocity grilles, and cross-baffle the return so sound does not simply travel out through the duct.
The second is humidity. Fabric panels, mineral wool and timber joinery in an unventilated tropical room will grow mould inside a season if the air just sits there. So the design carries controlled fresh air and dehumidification, closed-cell materials wherever moisture is likely, and finishes chosen to be cleanable. A cinema that smells of damp after eighteen months is a construction failure, and an avoidable one.
SCOPE OF WORK
What's included
Acoustic design
Room dimensions, speaker geometry and seating checked against modal behaviour before a single wall goes up.
Isolation shell
Independent or resilient wall leaves, mineral wool cavities, damped board layers and a ceiling hung on isolators.
Doors & penetrations
Acoustic-rated door sets with real seals, and every socket, duct and conduit backed so it is not just a hole in the shell.
Bass management by construction
Traps built into soffits, corners and the rear wall where they have the depth to work, rather than foam added later.
Silenced climate & ventilation
Fan coil located outside the room, lined plenums, low-velocity grilles and a fresh-air path that controls humidity.
Cabling infrastructure & finishes
Oversized conduit with draw cords to every location, rack ventilation, star ceiling if wanted, acoustic fabric and joinery.
PROCESS
How the job runs
- 01
Brief & room assessment
We look at the space, the rooms around it and your integrator's outline spec, then set acoustic targets in writing.
- 02
Design & fixed quote
Wall build-ups, dimensions, air path, conduit schedule and finishes drawn and priced as one itemised package.
- 03
Build the shell
Isolation, ceiling, floor, doors and services installed, with all conduit run before anything is closed up.
- 04
Treat, measure & hand over
Traps, absorption and finishes fitted, then the room measured for reverberation and noise floor before the kit arrives.
INDICATIVE PRICING
Honest numbers, before the survey
| Scope | Guide price |
|---|---|
| Acoustic room shell, ready for fit-out | from IDR 45,000,000 |
| Complete cinema room construction | from IDR 125,000,000 |
| Acoustic treatment package | from IDR 1,150,000 / m² |
Room size, isolation target and finish level set the price; quoted fixed after a free site visit with your integrator.
Request an exact quoteFAQ
Cinema room construction in Bali — what owners ask
Do you supply the projector, screen and speakers?
No — that is the integrator's work and we coordinate with them happily. We build the room, run the conduit, provide clean power and rack ventilation, and hand over a space that measures the way it should. If you have not chosen an integrator yet we will introduce you to ones we have worked with, but we do not sell boxes.
Will the rest of the house hear it?
That is what the isolation shell is for. Bass is the difficult part, because low frequencies travel through structure rather than air — so the more thoroughly the room is decoupled, the better the result. We agree a target at design stage and build to it, and we say plainly when a location makes it hard, a cinema directly under a bedroom being the classic case.
Can you convert an existing room?
Usually, and it is our most common job. The constraint is dimension: an inner shell takes 100 to 200 millimetres off each surface, so a small room becomes noticeably smaller. We measure first and show you what is left. Where a room is genuinely too tight, an acoustic treatment package from IDR 1,150,000 per square metre still improves it substantially.
What does a cinema room cost in Bali?
An acoustic shell — isolation, ceiling, door, silenced air path and conduit, ready for your integrator — starts at IDR 45,000,000. A complete built room with tiered seating platform, joinery, acoustic finishes and full climate work starts at IDR 125,000,000. Treating an existing room runs from IDR 1,150,000 per square metre of treated surface.
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