Prefabricated house provider with good sound insulation?

I think it is due to the bypass opening of the controlled residential ventilation, the wall structure is on both sides with 14 mm gypsum board and a 14 mm chipboard in between, between mineral wool. It’s still okay now but if my girls ever have visitors, oh dear...

Acoustic engineering is an overall concept

Yes, obviously, that's why I'm asking here.

What’s interesting is not only what’s on the wall, but also what’s inside ;-)

Oh, I see. Well then... thanks.

The delusion of supposedly inherently weaker sound insulation in prefab "modular" houses is in the heads and nowhere else. If that also applies to your head, the only "help" is to build massively – according to the forum majority, sand-lime brick is considered the superior number one sound buster Buddha.

I’m aware that a prefab house can even have better soundproofing since the walls are boarded on both sides. But still, it doesn’t have to be that way. Almost every prefab manufacturer has a different wall construction, which I can hardly evaluate, so I’m asking about experiences.

I play electric guitar and would sometimes like to play loudly without annoying the neighbors.

The marketing material from Schwörerhaus seems to convince me the most. For example, that you can additionally soundproof the roller shutter box, just like the windows.

But as I said, experiences are preferable, especially from someone who also likes to play electric guitar a bit louder, possibly also drums, piano, saxophone, etc.

I think it is due to the bypass opening of the controlled residential ventilation ...

Yes, that also makes me think... controlled residential ventilation, roller shutter box, window.

In hindsight, I probably should have asked differently, as it is more about a "music room" here.

Due to our construction area, we also have to meet various soundproofing criteria, which is why we install soundproof windows and the aforementioned insulated roller shutter boxes on the outside. We have no concerns regarding sound from the outside. The neighbors with solid houses had to invest more in this regard. When it comes to this, I think you are in good hands with Schwörerhaus. I would also give more thought to soundproofing inside.

that a prefabricated house can even have better sound insulation because the walls are boarded on both sides

... I consider this a "causality" on the level of the "Bäckerblume". While one does not board exclusively, mostly stud walls are boarded.

The marketing material from Schwörerhaus seems to convince me the most.

"The marketing material seems convincing" is a comment on Schwörerhaus that I could not have phrased better :)

In hindsight, I probably should have asked differently, since this is more about a "music room" for me.

Yes. And then you should not choose the provider based on all the interior walls in the house, but rather have that one room specially equipped. Presented newly focused in this way, I see your question similarly to that of , see here:

... I consider this a "causality" at the level of the "Bäckerblume". Although cladding is not done exclusively, it is mostly done on stud walls.

Ok, unfortunately I can't follow :)

Soundproofing is important to me for the music room, but not only that, also overall.

I am also considering building with a basement, then a room-in-room. But that will be very expensive.

"The marketing material seems convincing" is a comment about Schwörerhaus that I couldn't have phrased better :)

Can't follow again... :) It is marketing material, but I still consider it positive.