Knowledge Bomb #11: Low cut speakers, desk reflections, PSI AVAA etc.

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It’s time for another UA-cam Comments Knowledge Bomb!
As always, this is where I answer your questions from the UA-cam comments.
Of course we’ve got chapters, so feel free to binge the whole thing, or jump to whichever question tickles you the right way first.
Timecodes:
00:00 - Intro
00:35 - FREE Home Studio Treatment Framework
02:09 - Low cut speakers to remove room modes?
03:43 - Peak @ 27Hz best solution
07:57 - Desk reflection affected frequencies
09:47 - Using room modes to counter peaks and dips?
11:25 - Why do some masters made on uber high end speakers sound terrible?
14:06 - PSI AVAA for low end control
15:09 - Can the computer screen affect depth perception?
18:22 - Tilt speakers up to reduce desk reflection?
21:21 - 100Hz to 400Hz build up
23:47 - Noise escaping through radiator
Related blog post on Acoustics Insider:
www.acousticsinsider.com/blog...
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[@BabyBeowulf]

Anyone noticed that bro kills plant after plant after plant 😂

[@fharispe]

🤣

[@TClintonF1]

Can you do a video on the difference between the goal/differences of setting up a recording studio vs. a room for listening to music/home theater please. Thanks!

[@somedood6621]

Eagerly awaiting your PSI Avaa video, we need a full review from you jesco!

[@dougleydorite]

I have 3 AVAA’s. The best part about of them is the space you save vs how much work they do

[@Peter-c5c]

I know its an old unit but can you test or have you tested a BagEnd Electronic Bass Trap vs the AVAA?

[@Durosai]

Ive used the Bag End E trap in a few rooms Ive designed. The main thing i like about it over the AVAA is that you can tune it to specific frequencies and set the Q value, whereas the AVAA just acts as a broadband absorber. But unfortunately, Bag End doesnt make the E traps anymore seems like

[@Peter-c5c]

@@Durosai I am reworking my room. Currently have one BagEnd E trap. I'm interested in adding the AAVAs because of the small footprint. Wonder if you can articulate when and where to consider using the AAVA over traditional a more approach.

[@Durosai]

@@Peter-c5c get the AVAA traps if you need broadband trapping in a physically constrained space and are willing to spend the money. To get the same effect with traditional traps, you need significantly more surface area and volume.

[@nashbeuh]

You don't need 5 Avaa's to feel a big differnce in the very low end (27 Hz?). I have 2 Avaa's in the front corners with a Trinnov and almost 2 meters of rockwool in the back and the bass seems to be at least manageable in my 6,5 x 4 metres bunker!

[@marcelschechter]

2 meters of rockwool is the essential part, I guess. ;-)

[@ezrashanti]

Hi there, I have a similar setup but only 26" rockwool in back, similar in front corners. No AVAAs. I find that the room is a bit too dead now. I'm considering putting slats of cedar across the back wall. Do you use diffusion or anything else to liven things up to sound more natural?

[@GingerDrums]

for 20K you can almost get a Kii Three BTX system which will also solve your issues but also solve your monitoring wishes in many other ways too. Even just the Kii tops or the Dutch and Dutch cardioid speakers will do more to improve the direct bass ratio and room modes than 5 AVAAs.

[@Durosai]

Ehhh kind of but not really. The Kii Three and Dutch Dutch mitigate low frequency radiation behind the speaker and a little bit on the sides of the speaker. But youre still going to have to deal with room modes. Youre still going to get reflection off the rear wall, so the length wise room mode will still be an issue. There is no speaker that is a substitute for trapping.,

[@Durosai]

But i agree that the AVAA e traps are insanely expensive

[@sigurtsigurt549]

No it will not solve any room mode issue , i would say opposite as they are going down to 20hz , using dd8c with 2 avaas in studio..

[@davidallanmusic]

Additionally to what others have said, the cardioid effect doesn't go down into the sub frequency range. For that reason I decided to spend more on bass traps and save by not purchasing the Kii's.

[@sigurtsigurt549]

@@davidallanmusic but still kii is one of world best sounding compact speaker