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A Musician's Living Room CW90: The Muzijun Install (Video)
2026-11-13 · Featured Projects
The CW90 is a 5.1 wireless cinema system from SNAIL POWER: a Ø90mm cut-out, a Ø105mm faceplate, a cabinet 100mm high, five in-ceiling speakers plus one subwoofer, ¥17,200 for the whole set — the "from ¥17,200" tier. The scenario it serves is very specific: the house is already lived in, and neither the ceiling nor the walls should be touched again. What this piece is about is the set in musician Muzijun's home; the video shows his living room.
Key points
- When musicians pick a cinema, they first check whether dialogue is accurate, then whether the low end is clean; quantity comes last.
- Conventional on-wall AV, a soundbar, large in-ceiling boxes — he looked at all three paths, and each one jams in a different place.
- What the Ø90mm cut-out buys back is not more output but invisibility once installed; the low end is handed to the W10.
- A house that is already lived in runs on a dedicated 5.8G channel with no speaker cables, but the installation work is not skipped.
- The costs are stated in the open: the subwoofer takes up floor space, no channels can be added later, and 5.8G is weak through walls.
1. Three things a musician asks of a living room
In home theater design, the first question is "who is listening"; the equipment list actually comes later. Audiophiles want impact and envelopment. Musicians want a different set: accurate dialogue, a low end whose pitch you can hear, and a room that does not turn into a gear room.
Accurate dialogue means both speech and solo vocals have body — not hollow, and not made clear by pushing the center channel bright. A low end that is not muddy means you can hear pitch in double bass, kick drum and electronic sub; once it muddies, all that is left is a layer of boom. The third thing is not damaging the living room: floorstanding speakers, stands, visible cable, swapping the TV cabinet for a rack all count.
The cost: judged by this standard, more than half the options drop out. If you really copied a recording studio, the living room itself would fail — dimensions, sofa and glass doors all change the sound, and no speaker purchase fixes that.
2. Three paths he considered, and where each one jams
Bring these three requirements into the proposition of living room cinema speakers, and only three approaches remain.
One is the conventional AV 5.1 on-wall layout. Sonically this path is easy to get right: the speakers spread out and the angles are adjustable. What jams it is the third requirement — the surrounds either stand on stands behind the sofa or hang on the wall; that stretch of home theater wiring from the AV receiver to the surrounds can only run inside the wall or under a rug. The living room becomes a room with equipment in it.
One is a soundbar. It takes no space, touches no wall, and one unit gets you started. What jams it are the first two requirements: the rear image is made by algorithms and only holds when you sit dead center — shift a little and it comes apart; the center dialogue is pushed out of a long bar, so its position moves with your posture. The low end has quantity, but "clean" is not its strength.
One is large in-ceiling boxes. Six-and-a-half-inch and eight-inch in-ceiling boxes have more headroom, and there is no arguing with that. What jams it is the house: cut-outs of 20 cm or more, plus tall cabinets, mean the ceiling often has to give up height; with five of them in a row, the ceiling is no longer the ceiling it was.
The cost: all three paths work, they simply book the bill in different places — on-wall trades space for sound, a soundbar trades a sense of position for convenience, in-ceiling trades the ceiling for headroom.
3. Down to the CW90: one Ø90mm hole
The CW90 takes a fourth path: make the cabinet downlight-sized, hide it in the ceiling, and send the signal without wiring. SNAIL POWER was founded in Milan in 1995, worked out its variable waveguide structure in 2016, and launched the IW3 in 2018.
Ø90mm cut-out, Ø105mm faceplate, 100mm cabinet height — the three numbers have to be read together: the cabinet sits inside the hole, a ring of trim shows outside the hole, and the ceiling has to leave 100mm of clear space. After installation the ceiling is left with five round holes the same size as downlights, and that is what concealed cinema speakers actually mean — what the client usually wants is not a "cinema" but "no sign that a cinema was installed".
On the sound side it is a 2.75-inch full-range driver plus a passive radiator. With that diameter the low-frequency limit cannot go very low; the structure decides it. So the W10 subwoofer has to be there: the subwoofer catches the low band, and the five small speakers only handle mid and high frequencies and imaging. 90W per unit, 111dB maximum SPL — small drivers do produce energy, and the real work is in how power and peaks are managed.
The signal runs on a dedicated 5.8G channel and does not join your home Wi-Fi: the player and the five speakers open their own link and take no router channel. Houses with not a single speaker cable in the walls take this path; wired when installed during the renovation, wireless when added afterwards — the stage of the renovation should not decide whether a cinema is possible.
The cost: a small cut-out buys back concealment, not performance. If you want a larger diameter and more headroom, the CW90 is not that answer; and once the hole is cut, it cannot be undone.
4. A set of numbers you can check
| Item | Value | What it handles in this system |
|---|---|---|
| System configuration | CW90 ×5 + W10 subwoofer + MS-1 | A complete 5.1 wireless cinema and karaoke combo system |
| Cut-out diameter | Ø90mm | The hole to cut in the ceiling, the same size as a downlight |
| Faceplate diameter | Ø105mm | The ring left visible on the ceiling after installation |
| Cabinet height | 100mm | The clearance the ceiling has to leave |
| Driver structure | 2.75-inch full-range + passive radiator | Mid and high frequencies are its job; the low end is not |
| Rated power | 90W each | 450W across five, and this is where the headroom comes from |
| Maximum SPL | 111dB | How far big dynamics can reach |
| Transmission | Dedicated 5.8G channel | Takes no Wi-Fi, and requires the same room |
| Package price | ¥17,200 | The "from ¥17,200" tier |
| Certification status | Dolby Atmos and DTS:X certification in progress | The only thing that can be said publicly |
The last row needs one more sentence: the status of certification today is exactly "Dolby Atmos and DTS:X certification in progress". If anyone says the approval has come through, ask them to produce the paperwork.
The price is also worth breaking apart. Everything here is called 5.1, from ¥17,200 to more than ¥100,000, and the difference lands mainly on subwoofer specification and amplifier drive, not on those five speakers. The CW90 counts the subwoofer and the player inside the ¥17,200, because that configuration is fixed.
The cost: the numbers only cover half of it. The table has no row for "the room", and the room is exactly what decides whether it sounds like anything.
5. Three things you hear once it is installed
Dialogue is the first thing people notice. The usual complaint about an in-ceiling center is that dialogue sits high and floats, because the box is overhead and not in the picture. The answer is placement plus level: set the center close to the horizontal center of the picture, then lift the level a little so dialogue falls back into the picture. Musicians are especially picky about this one — once dialogue goes hollow, the whole passage falls apart.
Whether the low end is clean is half the subwoofer and half the room. Once the W10 catches the low band, the five small speakers no longer have to hold on, the mid and high frequencies relax, and that is where the density of dialogue comes from. But "clean" is not something another speaker hands you: the subwoofer position has to be found, the crossover has to be right, and standing waves have to be dodged through placement and calibration. If it sounds muddy, eight times out of ten it is the room.
Surround localization is the third. The two rear boxes are real, and what gets noticed is usually not explosions but inconspicuous sounds: rain falling at different distances, footsteps walking from the left of the picture to the right. On virtual surround these smear into one blob; on real surround they have a position. Musicians are more sensitive to position than the average viewer, and that is why he accepted this system — quantity can be tuned, position only comes from speakers that are actually there.
Not disturbing the neighbours also holds up: the waveguide directivity sends energy toward the sofa, so you do not have to push the volume up. Low frequencies still travel downstairs, though, and in a house with especially sensitive neighbours below, a floating floor does more than swapping speakers.
The cost: making sound is not the same as sounding good. A new system needs calibration, level matching and a search for the subwoofer position, and your ears need a few days to adapt; that "sound hanging in mid-air" feeling right after first power-on is, eight times out of ten, a setup that has not been done.
6. The costs, who should not choose this, and one judgment
- The subwoofer takes up floor space. The W10 is powered, so it has to sit on the floor, and it needs power.
- The system is closed. Wanting more channels means replacing the whole set.
- 5.8G requires the same room. Transmitter and speakers are only stable together, so do not count on reaching the second floor.
- A cut hole is irreversible. Get the center point wrong or hit a joist, and the only fix is patching the panel and cutting again.
Who should not choose this: if you are still at the electrical and plumbing stage and can run cable, the same money buys larger drivers on a wired system; if the budget sits around ¥10,000, starting with a soundbar makes more sense; if the living room is over 30 square meters and you are building 7.1.4, this set does not cover that scale — look up to the IW6 WIDE at ¥44,800 for the package; if you rent or will move within two years, it cannot come with you. If the ceiling clearance is under 100mm, fix the ceiling first.
And one honest word: how carefully the home theater design is done — whether the positions line up, whether there is power at the subwoofer spot, whether the cut-out centers are right — often decides whether it ends up sounding good more than spending another ¥20,000 does.
In one sentence: The CW90 does not make a cinema smaller; it moves five speakers out of the "room" layer — Ø90mm cut-out, Ø105mm faceplate, 100mm cabinet, 90W per unit, 111dB, ¥17,200 for the package. What it buys back is not quantity but "no sign that a cinema was installed", and two speakers that are really behind you.
Exit conditions: still in renovation, go wired; already moved in and unwilling to touch the walls, go with the wireless version on the dedicated 5.8G channel; if you want to add channels later, or the living room is large enough to build 7.1.4, this set is not the answer.
Back to concealed cinema speakers themselves: a musician is willing to accept a 2.75-inch driver in his living room because he has done the arithmetic — the low end goes to the subwoofer, position goes to the speakers, and the living room goes back to looking the way it always did.
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#Classic Cases #CW90 #Muzijun #Living Room Cinema #Concealed Speakers #Musician Listening
Written by Digital Xiaoniu, first published on the SNAIL POWER official site, Classic Cases.