imral3's system progression - aka - new house, new listening room

[highend64]

In-room measurement from today:
View attachment 2425065
Leveled mains with subs a little better, still some issues for another day.

You might have that response due to room. I have a similar problem with bass below 200hz. How do you have the signal processed to each sub?

 

[imral3]

How do you have the signal processed to each sub?

What exactly do you mean?

 

[highend64]

What exactly do you mean?

Sorry. What I was trying to say is that you are using a miniDSP right? Does it have where you can delay and/or use phase on some of the subs? Have you tried playing with that?

 

[imral3]

Yes. Using REW I measured each sub individually. Imported that into MSO to correct the summed response, with individual delay, gain and PEQs for each sub.

 

[highend64]

View attachment 2273565
Blue squares = subwoofers.
Red rectangles = speakers.
Green square = listening chair.

Thanks for the compliment!
Enjoy the musics!!
Ray

Edit: not drawn to scale. Lol.

Is this your current setup layout?

 

[imral3]

Is this your current setup layout?

Close. However, front of subs are now 32" into the room and still centered on the 1/4 line of room width.
Speakers currently aren't toed in, either.

 

[imral3]

Used REW room simulator and decided to move mains. Front baffle now 55" from front wall (was about 70") and tweeter 37" from sidewall (was about 33").
Hoping this helps smooth out the 96hz spike and the 150ish hertz dip.
Won't be able to measure the room until Monday... fingers crossed.

 

[imral3]

Today's in-room measurement:

 

[highend64]

Today's in-room measurement:
View attachment 2427984

Looks much better. Between 60 and about 150hz still seems to be erratic.

 

[imral3]

Looks much better. Between 60 and about 150hz still seems to be erratic.

Maybe today's is a little better...

I'm happy with the results for now.

 

[highend64]

Maybe today's is a little better...
View attachment 2428457
I'm happy with the results for now.

Just curious, What phase position do you have the two subs behind the listening position?

 

[imral3]

Just curious, What phase position do you have the two subs behind the listening position?

All 4 subs are set at zero phase.

 

[highend64]

All 4 subs are set at zero phase.

Try setting your two rear subs 180.

 

[imral3]

Try setting your two rear subs 180.

As part of the MSO processing it would advise any phase reversal if needed. My next post below will be today's measurement results.

 

[imral3]

More measuring, fiddling and tweaking today.
First up, measurements of speakers only 50-20k:


Next is speakers and subs measured from 20-20k:


It is sounding really, really good.

 

[highend64]

As part of the MSO processing it would advise any phase reversal if needed.

True but some get discourage by using using it. I prefer variable for flexibility.
If you have the sub behind you, keep in mind the source of sound is coming at a different time from the listening position and it is pretty hard to capture subsonic waves.

 

[imral3]

True but some get discourage by using using it. I prefer variable for flexibility.
If you have the sub behind you, keep in mind the source of sound is coming at a different time from the listening position and it is pretty hard to capture subsonic waves.

Good point. However, MSO assigns different gain levels and delays to each sub in order to achieve the flattest response possible at the listening position.

 

[imral3]

More time spent with REWMSODSP! Lol!
Speakers and subs measured from 20-20k:

Got better extension down below 30hz but, still chasing flatness.

 

[imral3]

Didn't like yesterday's results. Ran sub measurements through MSO again last night to make sure I did things correctly and again, didn't like it. So, I'm back close to where I was the other day.
Speakers and subs measured from 20-20k:

I *might* stick with this for a little while.

 

[imral3]

Forgot to mention I upped my mic holder game: