Hello Phil,
Thanks for your message !
My DAC is the Soulution 760.
I have added the details of my system to my profile.
The nice thing about acoustics is its predictability. It’s a mechanical problem like any other.
Although my practical experience is limited to my room, I learned a few things about acoustics and psychoacoustics during the past 3 years. It’s a facinating subject. It’s kind of my hobby.
We don’t need to have the speakers in the room to know what their frequency response will be. All we need is their frequency response at a specific SPL and their approximative position in the room. The treatment is then added accordingly, with in mind the goals we want to achieve and the budget.
With all due respect to FR, the terms over-absorbing or deadening don’t mean much.
It is clear that adding acoustic treatment without really knowing what we are doing can lead to an unpleasant imbalance.
The trap of DIY is, as you know, adding foam panels, curtains, etc. and expecting miracles.
The reality is that too much of those invariably leads to an uneven decay time.
Comb filtering issues and decay time are critical!
These are the two things we’re after when treating the room.
The first will bring “intelligibility” and reduce listening fatigue. The second allows reducing the impact of the room evenly: more speakers, less room.
But… achieving an even decay time down to, let’s say, 60Hz is quite a challenge. Not in terms of complexity; that’s relatively easy when we understand the basics. It’s the amount of treatment needed that is the problem. It’s enormous!
An uneven decay time or, said differently, a room treated for high frequencies will lead to a so-called “dead room”. It’s like adding a high pass filter to your speakers, attenuating the upper frequencies. Not nice.
What I’m going to add is just a complement to what I already have. It won’t do miracles.
But my goal is not just about acoustics. I really want to split this space in two.
→ The Listening Room Reality - #879 by Thomas
Of course, my room isn’t perfect in terms of frequency response. It can always be better, especially regarding frequencies under 100Hz.
But for that, I plan to buy some fairy powder : PSI AVAA C20
EDIT : I’ll take some pictures when the speakers arrive!