Expression 13A, Source, Motion series Atmos tops and sides

[Fidji99]

Not too many photos to show - but this is the graph from my initial calibration. Nice. Excellent sound.
From timing perspective - Group Delay below 20ms across the board, resulting in dynamics, that I have never experienced before - bass/drums are really on "live" level in terms of missing any compression.

 

[Fidji99]

Maybe one picture to demonstrate how I have spent whole WE

 

[ttocs]

Not too many photos to show - but this is the graph from my initial calibration. Nice. Excellent sound.
From timing perspective - Group Delay below 20ms across the board, resulting in dynamics, that I have never experienced before - bass/drums are really on "live" level in terms of missing any compression.

View attachment 24514

So this is the "measured" response, correct? Not a predicted response?

Yeah, if you can get a measured response like this and group delay below 20 and keep the dynamics at the same time (unike when I really, really tried with MSO but failed, looked great but sounded awful), you're a lucky dog!

 

[ttocs]

Maybe one picture to demonstrate how I have spent whole WE
View attachment 24515

Looks like my living room when I'm testing.

 

[Fidji99]

So this is the "measured" response, correct? Not a predicted response?

Yeah, if you can get a measured response like this and group delay below 20 and keep the dynamics at the same time (unike when I really, really tried with MSO but failed, looked great but sounded awful), you're a luck dog!

yes, this is kind of predicted response from Trinnov, but it matches very well with REW measurements [will post some REW stuff]

MSO - I had the same experience, I could hear how subs work against each other, if it makes any sense.

My current routine [works for 4 subs max, as this is Trinnov limit - you can create one virtual 4 way speaker max], so I have 2 virtual subs, consisting of 4 subs each.

1) measure subs in REW, create EQ - filters - just cuts - in my case modes at 28 and 65Hz to even response out, no boosts, enter into TRINNOV and re-measure
2) run MSO - but ONLY with delay blocks, no gain or PEQ - get some improvement [limit 7ms]
3) enter delays into Trinnov
4) run global EQ for all 4 subs combined

Works well, no idea if this is specific to TRinnov, I think you can do it with Flex or 2x4HD too.

 

[Fidji99]

@ttocs - probably you have stumbled across this guy - Jeff Merry @fattire in AVSFORUM

https://www.youtube.com/@jeffmery

He preaches using All Pass Filters and Global EQ to get best out of MSO.

 

[Duke]

You are an expert willing to share what you know humbly. I am making a point of having a setting made for Auro 3D to see what it is you have discovered. I finally will have my subs in phase. Even JonFo, another member in high standing with me says he has an interest to buy one eventually.
This is how the back of my unit is connected. I use 3 Oktos, but only 2 are for Dacs. The other is to hookup a computer to to the Trinnov.

 

[Fidji99]

Today was the day. Those 15a’s are quite something else