• Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Yet another small room treatment thread (15 years overdue)

exitmrhat

New Member
Joined
Feb 16, 2025
Messages
1
Likes
0
Hey guys, this is my first post, kindly asking for your advice. Been reading this forum like crazy for the past couple months, especially Amir's reviews on my favorite hi-fi products and more.

I've decided that it's time to do the acoustical treatment I've been postponing for 15 years :D (Hey, it's now or never, right?) So I've been reading about it and I've watched Anthony Grimani's series on YouTube.

My setup: 5.2.2 (Atmos front firing). I made a quick drawing in Paint :facepalm: (couldn't be bothered to learn to use anything else). Room size: L 5.45 x W 3.15 x H 2.48 m.

room.png


Some actual pictues:

room_4.jpg
room_5.jpg

room_6.jpg

room_7.jpg


As you can see, there isn't much furniture, walls are mostly empty. So I need to fill the emptiness with panels. Problem is echo and mudiness across all freq ranges. Positioning the subwoofers like in the pic got me a good freq response in the bass curve (this was done by an audio calibrator). The engineer stated that the bass response is ok, and the problem lies in the mid-upper freqs (the echo / mudiness).

I based my research on the Anthony Grimani's reference:

grimani.png


I already ordered some Vicoustic products based mainly on the looks and not the performance: 8xCinema Round Premium, 8xWavewood Ultra Lite, 8xMultifuser DC3. I placed 4xCinema Round Premium, 4xWavewood Ultra Lite behind the couch and 1 Cinema Round Premium + 1 Wavewood Ultra behind the speakers. The effect was already impressive, the mudiness in the upper mid and high frequencies was gone! I couldn't get enough of listening, it's like I was discovering music hidden inside my favorite pieces. However, the echo/boominess in the midrange was still there. And I wondered: what if I can get even better sound? Note that those panels were absorbtion only, the graphs on Vicoustic site show them to be efficient starting 300 Hz only and up. So I returned the Visoustic absorbers (a hassle...), but kept the 8 diffusers (Multifuser DC3). These will go on the ceiling, I was unable to test me obviously.

Enter Addictive Sound - a Polish brand with half the prices of GIK / Vicoustic and with highly praised products. Thier absorber use proper mineral wool (Vicoustic were Polyurethane foam), are thick and they absorb in a broad band. New plan: 6xAbsorber Premium 100x50x11cm to go behind the couch at first reflection front wall, 1 Binary Diffuser 120x60x11cm to go behind the couch but in the far right corner (far from the listening position), 1 Absorber Premium behind each front speaker, 2xAbFuser 100x50x11cm (absorption and diffusion) to go above the TV ), 1 Triangle Bass Trap 1m to to in the lower left corner and 1 Bass Trap d.30cm (round) to go in the lower right corner. The 8xVicoustic Multifuser DC3 will go on the ceiling.

Anything terribly wrong with this plan? I do have some questions:

1. Asymmetry - the distances to left, right walls are not equal, and - more importantly - there is an acoustic asymmetry as on the right there is a window (I have curtains) whereas on the left there is a wall and furniture (desk, chair, monitors, bookshelves). I've decided not to treat the left wall; there isn't much space left for placing absorbers (aesthetically). I have also read Amir's stuff on side wall reflections where he states that these don't necessarily need corrections. Is this a good approach? I could ultimately put two AbFuser 100x50x11cm (absorption and diffusion).

2. Ceiling diffusers - should they go up on One row across the width of the room or on two rows focused in the listening position?

room_2.png

vs
room_3.png



3. This only covers the back half of the ceiling; is it necessary to put absorbers in the first half of the ceiling? I would not do it for now, thinking it's too much absorbtion.

4. Can the two bass traps do worse for the bass reposnse? Also, is it a problem that they are not identical? I picked two different models with 2 different freq reponses based on what can fit.

Any other feedback is much appreciated.

Thanks.
 
Back
Top Bottom