RoomFit 10 PEQ + EQ 10 PEQ ?

[Gram1000]

Hi all,

New WIIM Amp Ultra owner reporting to forum.

Gear connected to Amp Ultra:
Mains: Polk R200
Sub: JL Audio D110

Run RoomFit today with UMIK-1:
Range: 20-300Hz
Min/Max gain: 12db
Max Q; 10
Non-boost mode: on
Smoothing: 1/12 Oct
Sub crossover: 80Hz

Prior to RoomFit MMM was eyeballing sweeps with REW and set the mains delay to 6ms based on where the crossover dip at 80Hz was the lowest.
Also based on these sweep the phase set at 180° was way better.
To note my REW skills/knowledge is almost non-existent at the moment, so there's still a dip at 80Hz and definitely a lot of room for improvement.

Then to my question:
As seen in the attached RoomFit pics there's a huge peaks in my room at 30Hz and 70Hz and to fix these all the 10 PEQ were used between 20-115Hz leaving a lot of ripples between 115-300 that were not able to be corrected.

In the EQ/PEQ I've used 5 out of 10 PEQ to fill with Erin's spinorama EQ data above 300Hz for Polk R200.

In short term to be able to get 115-300Hz range better corrected should I just run REW sweep on top of current RoomFit and EQ/PEQ and get recommended 5 PEQs for that 115-300Hz range to be filled in Amp Ultra EQ/PEQ ?

PS: SQ for 2ch music is more important to me than movie

 

[dominikz]

Hi all,

New WIIM Amp Ultra owner reporting to forum.

Welcome!
First let me say that honestly, it looks to me you did a very good job already! Nice work!

Run RoomFit today with UMIK-1:
Range: 20-300Hz
Min/Max gain: 12db
Max Q; 10
Non-boost mode: on
Smoothing: 1/12 Oct
Sub crossover: 80Hz

These are good choices!
My only advice would be to try to use "Individual Channel" RoomFit variant, instead of the "Stereo" variant which you used, and to try the "variable" smoothing option instead of 1/12 - see if either of that improves anything.

Prior to RoomFit MMM was eyeballing sweeps with REW and set the mains delay to 6ms based on where the crossover dip at 80Hz was the lowest.
Also based on these sweep the phase set at 180° was way better.
To note my REW skills/knowledge is almost non-existent at the moment, so there's still a dip at 80Hz and definitely a lot of room for improvement.

My usual advice for tuning the sub using the eyeball method is to initially set phase/polarity to 0° and all delays to 0ms. Then first check whether phase/polarity at 0° or 180° gives more energy around the crossover. After you make the selection, iterate through several delay values to see which one gives the most energy around the crossover.
I've described the process (and some alternatives) in this post in a bit more detail. Note that this was for a SVS sub with on-board DSP which adds ~6ms delay to start - your sub may or might not have this.

Hopefully this process will be simplified in the future when we get the BassFit feature.

Then to my question:
As seen in the attached RoomFit pics there's a huge peaks in my room at 30Hz and 70Hz and to fix these all the 10 PEQ were used between 20-115Hz leaving a lot of ripples between 115-300 that were not able to be corrected.

In short term to be able to get 115-300Hz range better corrected should I just run REW sweep on top of current RoomFit and EQ/PEQ and get recommended 5 PEQs for that 115-300Hz range to be filled in Amp Ultra EQ/PEQ ?

PS: SQ for 2ch music is more important to me than movie

There's IMO no reason to try and correct the minor irregularities in the 115-300Hz range (unless you hear some obvious issues there).
There will always be some left-over irregularities in the response, but your response actually looks pretty good to me as is!

In the EQ/PEQ I've used 5 out of 10 PEQ to fill with Erin's spinorama EQ data above 300Hz for Polk R200.

That is a good approach! I suppose you applied only the PEQ bands above 300Hz (i.e. above your RoomFit cut-off frequency)?

 

[Gram1000]

Thanks for the advice.

My only advice would be to try to use "Individual Channel" RoomFit variant, instead of the "Stereo" variant which you used, and to try the "variable" smoothing option instead of 1/12 - see if either of that improves anything.

I'll check and compare the results next time fiddling with RoomFit.

My usual advice for tuning the sub using the eyeball method is to initially set phase/polarity to 0° and all delays to 0ms. Then first check whether phase/polarity at 0° or 180° gives more energy around the crossover. After you make the selection, iterate through several delay values to see which one gives the most energy around the crossover.

Yes, that's what I did. With 0° polarity the dip at 80Hz went through the floor (sweeps at REW, no smoothing). At 180° the 80Hz dip appeared in the scale.
I was iterating the delay from 0ms to 8ms (1ms steps) and the dip at 80Hz was lowest with 6ms mains delay set in Amp Ultra.

And hope the upcoming BassFit feature will simplify and improve setting the delay between sub and mains.

Now its time to listen how the current sub integration sounds

 

[MCG555]

Welcome!
To be honest, this looks already excellent.
„Huge peaks“ is relative, I had to correct bigger ones…
How does it sound?
Besides the „big corrections“ I am always amazed how little difference there is in actual hearing it if „smaller corrections“ are applied…

 

[dominikz]

Thanks for the advice.


I'll check and compare the results next time fiddling with RoomFit.


Yes, that's what I did. With 0° polarity the dip at 80Hz went through the floor (sweeps at REW, no smoothing). At 180° the 80Hz dip appeared in the scale.
I was iterating the delay from 0ms to 8ms (1ms steps) and the dip at 80Hz was lowest with 6ms mains delay set in Amp Ultra.

And hope the upcoming BassFit feature will simplify and improve setting the delay between sub and mains.

Now its time to listen how the current sub integration sounds

Sounds like a plan! Enjoy!