Wharfedale Linton Heritage with Audiophonics HPA-S250NC first REW meauserements

[PeterNL]

Little update, all panels are already hanging on the walls (2x GIK 244 front walls, behind the speakers, 1x GIK mega bass trap on the left wall close to the speaker and 2x GIK 244 on rear wall corners).
I feel a big sound improvement, better clarity, more details, tighter bass, wider soundstage, just overall sound is much better than before.
FR still does not look very good comparing to the previous measurements, but then speakers were pushed max to the front wall and now I had to move them little bit away to fit panels.
Can You see any improvements looking at graphs (mdat attached) ?
Within next days I will remeasure and apply new Dirac correction.

 

[palm]

Is it practical for you to place an absorber on your back wall?
The very strong 2.5ms reflection (previous ETC) is common to both channels and could come from the naked wall behind the microphone - is it about 42cm away?
Nice setup!

 

[PeterNL]

Is it practical for you to place an absorber on your back wall?
The very strong 2.5ms reflection is common to both channels and could come from the naked wall behind the microphone - is it about 42cm away?

I will think about it and yes mic was about 42cm from the naked wall. Thanks for your advice.

 

[PeterNL]

Here new measurements before and after using Dirac Room Correction (made many presets, different house curves). What do You think ?
I like how it sounds, much better than before Dirac correction, I think that clarity and also other parameters have improved, not sure about distortion and RT60. I have also made different Dirac presets based on different house curves and slopes.
Mdat file attached, so please look at this. Any comment and advice will be appreciated. I feel like I am almost there

 

[PeterNL]

Dirac +6dB till -6dB curve looks like that:

 

[raindance]

It still looks terribly bright but with a large bass boost to offset that. In my opinion, if the seating position has to be against the rear wall, then I'd move the speakers well out from the front wall. But that's just my opinion (and what I do to avoid thuddy bass and improve mid and upper bass). My approach would be to get the system as listenable as possible before eq.

Blocking the ports also can help hugely with this type of seating arrangement.

The GIK bass traps will do very little to the freq response graph, but will tame reverberation times in the range that they are effective (which will not be low bass).

 

[PeterNL]

It still looks terribly bright but with a large bass boost to offset that. In my opinion, if the seating position has to be against the rear wall, then I'd move the speakers well out from the front wall. But that's just my opinion (and what I do to avoid thuddy bass and improve mid and upper bass). My approach would be to get the system as listenable as possible before eq.

Blocking the ports also can help hugely with this type of seating arrangement.

The GIK bass traps will do very little to the freq response graph, but will tame reverberation times in the range that they are effective (which will not be low bass).

Thank You. Have you seen previous graphs ?
It is not bright now to my ears. Moving the speakers is no go for me, because I would have to move them approximately 1,2 meter away from the front wall.

 

[PeterNL]

It still looks terribly bright but with a large bass boost to offset that. In my opinion, if the seating position has to be against the rear wall, then I'd move the speakers well out from the front wall. But that's just my opinion (and what I do to avoid thuddy bass and improve mid and upper bass). My approach would be to get the system as listenable as possible before eq.

Blocking the ports also can help hugely with this type of seating arrangement.

The GIK bass traps will do very little to the freq response graph, but will tame reverberation times in the range that they are effective (which will not be low bass).

I can see a bit of difference in FR with and without basstraps. I can hear it too.
I don't think +6 -6dB sounds too bright for me. Have also made more presets like +6dB till -6dB 1dB/octave and it sounds also good but little bit high shy for me.

 

[ernestcarl]

Dirac +6dB till -6dB curve looks like that:
View attachment 317326View attachment 317328

The time domain performance is improved a little bit... which is expected:



The mids below 500 Hz is somewhat scooped at the beginning (so the "transition zone" transient response is less than ideal). However, the remaining stored/reflected delayed energy arriving at the MLP somehow manages to even out a little better in the late response.

 

[PeterNL]

The time domain performance is improved a little bit... which is expected:

View attachment 317455 View attachment 317456 View attachment 317457 View attachment 317458 View attachment 317451 View attachment 317452 View attachment 317453 View attachment 317454

The mids below 500 Hz is somewhat scooped at the beginning (so the "transition zone" transient response is less than ideal). However, the remaining stored/reflected delayed energy arriving at the MLP somehow manages to even out a little better in the late response.

Thank You ernestcarl for Your response.
I think that I will stay with this settings, while I really like how it sounds now and don't see much more possibilities to improve sound even more. My room is just too ****** to make it perfect (L shape, sofa against rear wall etc.) but again, I am happy with the results I could achieve adding few GIK panels and re adjusting Dirac room corrections (still will be searching for the perfect house curve and slope).

 

[ernestcarl]

Thank You ernestcarl for Your response.
I think that I will stay with this settings, while I really like how it sounds now and don't see much more possibilities to improve sound even more. My room is just too ****** to make it perfect (L shape, sofa against rear wall etc.) but again, I am happy with the results I could achieve adding few GIK panels and re adjusting Dirac room corrections (still will be searching for the perfect house curve and slope).

Just keep one or two extra presets if possible — e.g. bass shelving -2dB and HF shelving -1dB etc. Recordings are so variable that even I adjust my settings on the fly after having done a gazillion “best EQ” curve calibrations.

 

[PeterNL]

Just keep one or two extra presets if possible — e.g. bass shelving -2dB and HF shelving -1dB etc. Recordings are so variable that even I adjust my settings on the fly after having done a gazillion “best EQ” curve calibrations.

6 presets which I use.
Harman +10dB -2.5dB use frequently in the evening or late night.
Rest of de presets just during the day and with much higher volume levels.
+6dB to -6dB 1dB/oct is just standard Harman bass boost curve +6dB but customized manually to have 1dB/octave slope beginning from 1kHz.

 

[PeterNL]

+6dB to -6dB 1dB/oct looks not bad for me (+/-1200€ setup) in REW:

 

[raindance]

It looks pretty good now actually - I would still personally want to add a little more droop between 500Hz and 13K, but that is just my preference.

 

[PeterNL]

It looks pretty good now actually - I would still personally want to add a little more droop between 500Hz and 13K, but that is just my preference.

Yes, I will try to adjust 500-13k and make another Dirac preset.

 

[PeterNL]

Yes, I will try to adjust 500-13k and make another Dirac preset.

 

[raindance]

View attachment 319495View attachment 319496

How does this sound? It looks very good.

 

[PeterNL]

How does this sound? It looks very good.

To be honest it sounds very good, neutral, just how I like (balanced).

 

[PeterNL]

Today measured using Moving Mic Method (measured at 75dB SPL but forgot to adjust RTA levels):

I find little bit strange that dip 200Hz-600Hz is no more visible. What do You think guys ? Is MMM more accurate vs single point ?

 

[palm]

I find little bit strange that dip 200Hz-600Hz is no more visible. What do You think guys ? Is MMM more accurate vs single point ?

Don’t you see similar variations in this frequency band with sweeps within the same location as the MMM ?

My listening position isn’t close to the back wall, but I imagine any small displacement vs this reflection can change quite a lot the response