Massive dip from 40-80 he

[ryanosaur]

I haven't that experience... but people run 3 and 4 subs on systems with two sub outputs.
I would see what the distance setting is for each location, and if close enough, manually set it to split the difference. With levels, you can apply what audyssey recommends to the gain on each sub... say one it wants to set -3, and the other -5dB, just dial it in manually, with a the difference in the AVR set again to split the difference.
Likewise, I haven't used a minidsp, but that's one of the main uses that people here have recommended is using REW and a 2x4 mdsp to manage bass outside of the room correction. I think the $95 model is fine for that, perhaps somebody here can confirm.

If you did the crawl, did you find some good locations to put your subs? If they happen to be equidistant from your LP, than your task is easy.

 

[loganschleich17]

The takeaway today was as I moved my couch forward the dip lessened . But I cannot sit 6-7 ft away from the tv and have 11 ft behind me. Also I kept one sub flanking the CC to one side for every measurement and moved the 2nd around and it seemed to make little to a small difference in the results. Today was discouraging because I tried putting the 2nd sub several places and it didn’t change much. The true change was being 6 feet from the tv lol. The dip went from -20 9.5 ft away to -2 6 feet away


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Do I just need to buy treatment and try to make the best out of my situation because idk what to do and it doesn’t help how limited my speaker placement is. My sub placement is pretty flexible but I can pull the towers out a foot or push them back? That’s about it;


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[ryanosaur]

Did you put the sub at your LP and move around the room to listen for the bass response?

 

[loganschleich17]

Sorry yes I did the crawl my best spot was rear right corner. But when i graphed it, it basically flew off the chart it was so high. 2nd best was front right corner. 3rd was to the right of the couch as if it was an end table.


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[ryanosaur]

But when i graphed it, it basically flew off the chart it was so high

What does that mean?

 

[loganschleich17]

It was hitting 100 dB with a 85 dB level set


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[ryanosaur]

right of the couch as if it was an end table.

Ha, I knew that would be a good spot... suggested it back on that other thread!

When you moved the sub to those locations and ran REW, had you dialed them in to match your system?

 

[loganschleich17]

Ha, I knew that would be a good spot... suggested it back on that other thread!

When you moved the sub to those locations and ran REW, had you dialed them in to match your system?

No I was dropping it and testing each spot


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[ryanosaur]

So you did a lot today... and rather than beat your head against a wall... I would suggest you move ahead with the curtains and such. Treating the room as you were discussing back in that other post isn't going to help you out a whole lot, I don't think.
Looking at your photos, perhaps pull your front speakers out a little more for another test when you have time. The baffle level with that front right closet is assuredly causing some issues... if you could pull it in to the room 1' in each direction, you might help minimize that.
If you can, and when you can, try opposite corner placements for your subs: front right and back left. You'll have to dial them in by ear, but if that gave your best response, then when you get them set, you should get better bass response over all in your room.
Remember with corner loading you will get significantly more output from those subs. You have to adjust them.
Consider the Mini DSP... if the $95 one will work for your situation, you can manually manage them with REW.

 

[shadyJ]

First of all, forget Audyssey's calibration, especially since it is restricting where you can put your subs. Any calibration that nets you a result like that isn't worth using. Run your system uncalibrated. Trust me, Audyssey isn't all it is cracked up to be.

By the way, room treatments will not be able to address frequency problems that low. Don't worry about room treatments, they can't help you here. What you need to do is optimize the response through placement.

 

[loganschleich17]

First of all, forget Audyssey's calibration, especially since it is restricting where you can put your subs. Any calibration that nets you a result like that isn't worth using. Run your system uncalibrated. Trust me, Audyssey isn't all it is cracked up to be.

By the way, room treatments will not be able to address frequency problems that low. Don't worry about room treatments, they can't help you here. What you need to do is optimize the response through placement.

The graph is without Audyssey


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[loganschleich17]

First of all, forget Audyssey's calibration, especially since it is restricting where you can put your subs. Any calibration that nets you a result like that isn't worth using. Run your system uncalibrated. Trust me, Audyssey isn't all it is cracked up to be.

By the way, room treatments will not be able to address frequency problems that low. Don't worry about room treatments, they can't help you here. What you need to do is optimize the response through placement.

That’s Audyssey on

 

[shadyJ]

That’s Audyssey on

I'm surprised its not doing more to trim the area from 40 to 60 Hz. The dip just above 100 Hz may well be ground bounce, and that can not be EQ'd.

 

[loganschleich17]

It is and I don’t understand lol


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[loganschleich17]

I'm surprised its not doing more to trim the area from 40 to 60 Hz. The dip just above 100 Hz may well be ground bounce, and that can not be EQ'd.

Haha I been up since 6 and I fixed the dip. This is what I have now. I put a sub at right of cc and as end table on right. I think Audyssey will work with that a lot easier

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[shadyJ]

Haha I been up since 6 and I fixed the dip. This is what I have now. I put a sub at right of cc and as end table on right. I think Audyssey will work with that a lot easier

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That is not a bad response and should sound pretty good.

 

[highfigh]

Symmetry with regards to subwoofer placement is most certainly not your friend. That dip is too low in frequency to be floor bounce. This is an axial room mode, because, with respect to the length of your room, the subs are in the same place. Move one of the subs to a different lengthwise distance placement in your room. Try a sidewall or rear wall placement, or maybe even a near-field placement.

I agree that symmetry WRT subs/low frequency is bad- I should have chosen my words more carefully.

 

[TLS Guy]

How does it sound? That dip is very narrow and I doubt audible. I would be more worried by the peak right before roll off. That looks speaker generated to me and not room. That looks like ripple from too high a Q bass alignment. All too common I'm afraid. All rooms have issues, even enormous budget concert halls. The questions always comes down to how does it sound. Mercifully, usually a lot better than it looks. So if the room sounds OK, then just put those squiggles in the back of your mind.

For most rooms speakers and their ills are dominant. I can tell good from bad speakers in pretty much the worst of rooms. I think that is because the brain locks onto those direct line of sight waves, and the room reflections just add the candy. I do know that the brain does not like a severe miss match between direct and first reflection. So speakers with an aberrant off axis response never sound good to me and that is confirmed in listening tests. An awful lot of trouble is blamed on rooms, when speakers are actually the major culprit.

In my experience good well balanced speakers are tolerant of a very wide range of environments, poor ones are exceedingly fussy about their environment.

 

[loganschleich17]

How does it sound? That dip is very narrow and I doubt audible. I would be more worried by the peak right before roll off. That looks speaker generated to me and not room. That looks like ripple from too high a Q bass alignment. All too common I'm afraid. All rooms have issues, even enormous budget concert halls. The questions always comes down to how does it sound. Mercifully, usually a lot better than it looks. So if the room sounds OK, then just put those squiggles in the back of your mind.

For most rooms speakers and their ills are dominant. I can tell good from bad speakers in pretty much the worst of rooms. I think that is because the brain locks onto those direct line of sight waves, and the room reflections just add the candy. I do know that the brain does not like a severe miss match between direct and first reflection. So speakers with an aberrant off axis response never sound good to me and that is confirmed in listening tests. An awful lot of trouble is blamed on rooms, when speakers are actually the major culprit.

In my experience good well balanced speakers are tolerant of a very wide range of environments, poor ones are exceedingly fussy about their environment.

It sounds a lot better, Audyssey cal was a lot better as well. I watched casino royale and when that building sunk it sounded just right. Unlike when I was watching breaking bad and they dropped a barrel and it was way over the top. So Audyssey isn’t compensating as much now which is great.
Rippi was just trying to find best sub placement and I believe I found it. This weekend I’ll be moving the speakers and I think that peak is speaker generated as you said. What is Q bass alignment ? And I yea I have decent speakers nothing amazing and they’re older but they were definitely not cheap/ poor quality,
Mains BA VR3s
CC VR920
Subs jbl Studio 550ps (2)


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[bpape]

Seat position appears to be the issue. If you can't move it, then you need to try to address the wall behind you to minimize the length modes. Best thing to do though is not sit in them. Looks like the peak below the dip is about 1/2 the frequency so it's looking like the length mode for sure.