Best Acoustically Untreated Room You Have Heard?


I have been researching room acoustics again in an effort to improve the sound of my system. Most webites give general information on the basics (resonance and reflection control) and some examples of properly treated rooms. The problem is that most of these rooms are just plain ugly (room with eleven tube traps) and involve too many compromises.

I'm curious to know if anybody has heard a stereo system in a room that did not have any (or very little) acoustic treatment that sounded fantastic. And more importantly, what factors contributed to that sound? I suppose that the furnishings acted as diffusers and absorbers, but what were they? Or maybe it was the shape/composition of the room and or ceiling?

Thank you in advance for any input.
ultrakaz
Hey guys, i have my system in my bedroom. I have to sit 6 ft from speakers, about 7 ft between them. I have the speakers 2 1/2 from the back wall. I have heavily deadened the whole back wall with perdue acoustic rockwool panels. Does this sound like i'm optimizing the room?
Streetdaddy, try looking at the Acoustic Sciences website for some basic information/theory on room acoustics. Typically, "deadening" the entire wall might be a bit much and a combination of deadening (especially in the corners) and diffusion works better. If you can try deadening the reflection points on the side and front walls as well.
Best untreated room was a friend's: 1920's house, cathedral ceilings, picture rails, record shelves on one side wall and a fireplace hearth with full-length plate shelf and built-in cabinets on the other side wall. The area behind one's head in the listening position was open to an archway and dining room. The area behind the speakers was broken up slightly by windows, sills, posts, and curtains.

To avoid getting bass traps and the like, try the Cardas speaker placement formula. It does wonders for mitigating standing waves and nodal bloats or suck-outs. That formula has saved me many hassles and perhaps many dollars in room treatments for bass problems.

http://www.cardas.com/insights/index.html

Go to room setup.

I do not know if this is a re-hash of some other known acoustic formula. Don't care; it works. I think it may be mostly oriented toward cone-n-dome, dynamic speakers. Not sure. It's been a while since I read the whole thing.

It might seem that you have less bass in some frequencies at first. Those could have been bloated before. You will hopefully find that you get a more EVEN bass response and that everything integrates much better with the formula.
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I am not affiliated with Cardas in any way. The only Cardas product I use is a phono interface box to convert DIN to RCA which I bought used from a friend.

Cheers---
I set my speakers up using the Cardas formula and it does really work. I couldn't get anything to sound good in my untreated room, until I set my speakers up using the Cardas formula. The only problem for me is that in my room that only puts me 6ft away from the speakers which for my taste is to nearfield.
Ejlif, You hit the problem nail on its ugly head. The Cardas formula requires the user to place the speakers further out into the room than many people can logistically get away with. Well worth doing, though, if you have the space.

There is always a trade off somewhere in Audio.