Room acoustics

Hello to you, I have made room for my NAS etc. in a sideboard in the living room. I also have a hole on the side with a Noctua fan that exchanges the air in the cabinet. Unfortunately, the clicking of the hard drives inside the cabinet is still too loud for me. Would anyone have a recommendation on the best way to line the inside walls to suppress these noises somewhat? It currently looks something like this: https://imgur.com/a... Best regards Niklas

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It would be great if you could include other products in the section, e.g. Basotect foam panels or "finished" products from London Acoustic or similar.

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Don't fall for the audiophile chabi, they want to sell you CHF 0.50 foam panels for hundreds of francs. Search for "acoustic foam" instead.

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I am a big film fan and have got myself some thick speakers for the home cinema experience. Unfortunately, I live in a very ring-loving block of flats with sensitive neighbours. Especially late at night, there are often complaints about noise disturbance. Now I would like to "hermetically seal" the living room. Does anyone have experience in this area or tips for good sound acoustics? Preferably not too expensive.

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There are many things that are used for room acoustics that are not (quite) as expensive, for example dimpled foams for de-sounding and foam mats with high mass density and heavy foil for sound damping. All that is missing here.

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