REW measurements - looking for advice

[Smitty2k1]

Finally got around to getting setup with REW and a UMIK in anticipation of a 2nd subwoofer and Minidsp arriving. I plan on diving into MSO once they do. My current setup is 3.1 channels. I'm also running Audyssey One Evo through my Denon x3500h AVR. Given that a second sub is coming I thought I should finally take a look at positioning within my awkward room and see if there are any easy gains to be had.

First up are the REW measurements, all shown with 1/6 smoothing.

LCR - center channel in pink, LR in purple/teal.

Combined L+R

And finally LFE

And here are a couple of pics of the room. Pardon the pull out sofa bed, but grandma needs a place to sleep while visiting. Very large open room with a sloped ceiling.

Seems my most immediate concern would be that null at 55hz? Anything to correct that? Any obvious room treatments to consider or speaker placements to adjust?

 

[yelloguy]

I would worry about the missing grandma before the null!

Second on my list would be the 20-50hz - I realize you maybe a bass-head, but one bass-head to another, try lowering those frequencies a smidgen and you will hear overall clarity improve.

As to the null, sometimes your sub interacts with the mains so reduce bass. But before worrying about that, I would wait for the second sub. Why fix something that will fix itself shortly!

 

[Smitty2k1]

I would worry about the missing grandma before the null!

Second on my list would be the 20-50hz - I realize you maybe a bass-head, but one bass-head to another, try lowering those frequencies a smidgen and you will hear overall clarity improve.

As to the null, sometimes your sub interacts with the mains so reduce bass. But before worrying about that, I would wait for the second sub. Why fix something that will fix itself shortly!

Now that I'm thinking about it I probably should have turned off Audyssey for these measurements since that low bass range may be boosted from Audyssey one Evo.

 

[madrac]

plus one for the turntable & vinyl........

 

[mags65]

Just a thought - would it make sense to hold off the measurements until the fold-out is tucked away? Seems like it could potentially interfere with the left channel vs. the others.

 

[Ruhled]

Yes. The bed will make quite a difference IME. I had sizable differences in room mode peak magnitude just replacing a chair with a loveseat. Frankly the loveseat had a more significant positive impact than other wall hanging room treatments, go figure. I barely need any bass eq now.

Measure both ways and post up the results.

 

[goat76]

Seems my most immediate concern would be that null at 55hz? Anything to correct that? Any obvious room treatments to consider or speaker placements to adjust?

When looking at the “Combined L+R” measurement, I would think the frequency area 150Hz-200Hz to be the most immediate concern. With a loss of energy in that range, instruments often sound a bit on the thin side.

 

[Smitty2k1]

Just a thought - would it make sense to hold off the measurements until the fold-out is tucked away? Seems like it could potentially interfere with the left channel vs. the others.

Oh probably, but I had some free time with the house empty and wanted to get everything setup to do measurements before the second sub arrived and I started messing with MSO

 

[Smitty2k1]

When looking at the “Combined L+R” measurement, I would think the frequency area 150Hz-200Hz to be the most immediate concern. With a loss of energy in that range, instruments often sound a bit on the thin side.

Any tips on how to correct that?

 

[goat76]

Any tips on how to correct that?

You can try different speaker and listening positions, or maybe let the subwoofers crossover at a higher frequency.

It's a common problem. I solved it by letting my subwoofers crossover point to overlap the main speakers a bit more.