HiFi room acoustic treatment


Hello,
From Europe alone, native language is not English to me. I pray for understanding.
 
I joined the acoustic treatment of the ceiling and the wall behind the loudspeaker. On the ceiling go Rigips Rigiton 8-15-20 gypsum boards, and above them stone wool.

On the wall behind the speaker goes 15 cm of stone wool, gypsum panel with 8% perforation, and another 5 cm of stone wool.

I am concerned about the final layer of the wall. I would put 2 cm wide strips, with a distance of 2 cm (50% coverage).

However, I can not find a stone wool with the finish in the appropriate color. Can I put a thin microfibre fabric over a stone wool?
forgisound

Showing 2 responses by forgisound

Thanx,
my native language is Croatian (Croatia is European Union country, east of Italy, on the Adriatic sea). Google translator can help, but this translation often leads to confusion, especially in more complex sentences.
I plan to cover the whole wall with wooden panels with wooden slats covering 50% of the surface. Below this I would install a 5 cm thick stone wool. If I did not want to see the stone wool between the wooden slats, I would put a thin microfiber fabric. I hope the fabric will not prevent the absorption of high tones?
Throw what I wrote, under that layer of stone wool I would put across the wall of the bass trap. Gypsum board panels with perforations 8%, and 15 cm below that of stone wool. The wall is made of clay brick 30 cm wide.
I hope it is clearer now.
btw.  Can I buy an online edition of the Master Handbook of Acoustics? In that case I could use an online translator.