About to invest in room treatments; GIK, RealTraps, DIY -- what is your experience?

@nolojunko

Thank you for your detailed and probing reply. A few answers/comments.

I am realizing that I need to do more left/right speaker sweeps. With help, I've built a spreadsheet to record db changes at key frequency points along with various positionings.

Yes, I have no corner or front-wall bass traps in place yet.

I am about 14 ft from the front wall, but the room is odd. It's 27 ft long in the rectangle I'm in, but there is an additional 8' x 5' hallway entering into it. This listening position was chosen because of the way it both sounded and measured. It's very hard to know where the standard 38% position is, given the irregular shape.

And yes, what I'm seeing on the sweeps before treating is just a couple of nulls; the member here helping me said it was one of the best untreated scans he's seen in a long time.

Are you measuring each speaker separately? Answer: no, but I will.

I will reach out to the acoustics thread at Gearslutz forum. I have a lot of the data ready to go. And if I stare at it any longer, I'll lose my mind.

Thanks again!

It’s very hard to know where the standard 38% position is, given the irregular shape.

This location is indeed very good....

this is the golden ratio....

My 2 locations are good and the 2 are at this same ratio, one from my front wall (near listening) the other regular position from the rear wall at the same ratio...My room is irregular but permit this....

Try to discover a location in your room inplying this ratio....

1.618 is the magic number of nature....

62 divide by 38 : 1.63

My Helmholtz-Fibonacci silent pipes organ, a room tuner has all  three sets of three pipes cut with this ratio....

😊

Simply where sinx equals cosx on a sinusoidal wave between walls which is at 3/8 and 6/8 or 37.5% and 62.5%. No golden rule, just math rule.

Your objection is a tautology beside my observation and you dont even realize it....

The golden mean is precisely a ratio which relation can be inscribed in a SPIRAL and the relation between the cosx and sinx exhibit then precisely this 1.6 ratio then this rule 38 and 62 % whichi is only an empirical illustration of this universal fact in traditional architecture and acoustic.... 62//38 which is a gross approximation....55/30 and 89/49 are Fibonnacci number, 2 fractions on an infinite series convergent to 6.1803....38/62 being an approximation itself of 2 terms of these series....

You are definitely intelligent, way more less tough that you think you are...

You make me laugh, go on....

If you try to contradict me, try a real argument AGAINST, not in favor, of what i argue for and not repeating my observation under another wording....You trashed turntables lover with partial fact, you trash E-Mats customers with suppositions without any experience of their products for the pleasure to hurt them with no reason other than your stubbornness...No shame...


This ratio is the FACT......He was probably discovered by accident in room tuning with EARS or by someone who knows the importance in all field of this historical proportion in art and science....

No golden rule, just math rule.

Golden rule IS math....😁 Just this affirmation make you a recipient of the donkey prize!

Try this book written by a Russian mathematician ( the best on the subject ) :

https://www.amazon.com/Mathematics-Harmony-Contemporary-Computer-Everything/dp/981277582X