Acoustic Room Treatment

Xi-Trum · « **Reply #140 on:** 12 Mar 2003, 08:34 pm »

JohnR, the concern I have with using fiberglass insulation is health related. I had read a study (don't remember where) linking fiberglass insulation to lung related health problems. They're fine in the walls and in the attics. Not sure if I want them in living areas.

The Jon Risch bass trap looks very interesting. It gives me an idea. I wonder if constructing a cylindrical wire frame and stuffing it with foam sheets (something like egg-crate foams which is a lot safer than fiberglass insulation) would have the same effect. There would be some space in the middle just like the Jon Risch design.

Anyone want to speculate on the effectiveness of this?

JohnR · « **Reply #141 on:** 12 Mar 2003, 08:41 pm »

Ah, yes that's a good point. He does mention (perhaps in one of the other recipes) that the fiberglass should be sealed in. I seem to recall reading that people have also used Miraflex which is safer in this regard.

Jay S · « **Reply #142 on:** 13 Mar 2003, 12:43 am »

I do recall reading about a quick and easy bass trap that used a wire frame which was then filled up with acoustic foam. I think the foam panels were placed in a triangular pattern. I can't remember where I saw this DIY page but I hope you are able to find it.

Dan Banquer · « **Reply #143 on:** 13 Mar 2003, 12:52 am »

From what I have been told, Fiberglass is very effective at low frequencies, and If I remember correctly it's the best for low frequency.
It's also available at Lowes. Now you can do one stop shopping for your fiberglass and 6 AWG speaker cable.

Rob Babcock · « **Reply #144 on:** 13 Mar 2003, 12:56 am »

Fiberglass surely isn't good for the lungs, but if you wrap it up good (like in a bass tube trap or a framed, cloth covered panel) it shouldn't be any problem. I think 'glass is about the best low freq absorber, tough to match with other materials.

markC · « **Reply #145 on:** 13 Mar 2003, 04:39 am »

I have the Q&D bass traps in my room. The fglass is wrapped in plastic to avoid any fibres getting out, (hopefully). I then covered them in burlap. Not the prettiest, but they sure do knock down the boomyness. Since I'm fortunate enough to have pretty well taken over the rec room for my listening room, the WAF isn't extreme and I can get away with plain old burlap. Grille cloth would look a lot nicer, but would also cost a lot more.

Xi-Trum · « **Reply #146 on:** 13 Mar 2003, 01:22 pm »

Quick update. I experimented and moved the right-side (1'x6') panel into the corner. I set it standing upright on the floor. The foam wedges were aimed 45-degrees into the room. Immediately, I noticed that the sound was (slightly but audibly) warmer and less harsh. Basically, I just moved the panel less than ONE foot. By having it tucked in the corner made a difference. And this was treating only one corner. AMAZING!!!

I need to find a solution for my corners quickly!

For now, that panel would have to stay in the corner. I can't go back to listening to harsher sound.

Bass traps would be next on the list.

witchdoctor · « **Reply #147 on:** 16 Mar 2003, 02:24 am »

Try th corner treatments from 8th
nerve. they worked great for me and are relatively cheap. check out their forum here on Audiocircle.

Antonio Machado · « **Reply #148 on:** 20 Apr 2003, 02:54 pm »

the early reflections of your speaker's sound, the sound just comes better without any excess of reflection. Good luck, let us know your decision/experiences, best regards, Antonio Machado.