Beginner trying to figure stuff out.

Ofer · Mar 16, 2025

So you think the LF bump is from the sub? can the sub be measured separately? If you have a 2.1 system it should be measured as 2.1. That way AL could also time align your sub, which can boost sound quality significantly. A decent tripod is a must.

moy · Mar 16, 2025

Ofer said:
So you think the LF bump is from the sub? can the sub be measured separately? If you have a 2.1 system it should be measured as 2.1. That way AL could also time align your sub, which can boost sound quality significantly. A decent tripod is a must.

Here is a measurement with the sub off .You can see the difference right? I currently have version 2.0, for a 2.1 measurement can I use version 2.0? Will look on the tripod. I used a cushion on the sofa in the past

. My DAC is only supporting 2 channels, for 2.1 I will need a DAC that supports 3 channels?

Ofer · Mar 16, 2025

Hi, This measurement makes much more sense. The difference here is the room. I am not sure about your question with the AL version. At any rate if it doesn't then upgrade. That is if you can measure the sub as a separate channel. It isn't clear to me how the sub is crossed and from where. DAC/Amp?

moy · Mar 16, 2025

Ofer said:
Hi, This measurement makes much more sense. The difference here is the room. I am not sure about your question with the AL version. At any rate if it doesn't then upgrade. That is if you can measure the sub as a separate channel. It isn't clear to me how the sub is crossed and from where. DAC/Amp?

The subwoofer is connected to the AMP this way,

Using my current filter, the sound is much better, tighter bass, less "boomy"

sledwards · Mar 16, 2025

What frequency have you set the LPF on the sub to prior to measurements? A plot of the sub alone would be helpful. In addition, you may want to consider moving the sub around to get a better L/R channel balance.

moy · Mar 16, 2025

sledwards said:
What frequency have you set the LPF on the sub to prior to measurements? A plot of the sub alone would be helpful. In addition, you may want to consider moving the sub around to get a better L/R channel balance.

Haven’t touched the sub on measurements, it’s connected to the amp, so I think can’t create any filter for it. So it’s like a right channel whole speaker. Sadly my space so limited, that’s the space available. Can’t move other place. Thanks for your input!

Ofer · Mar 16, 2025

moy said:
The subwoofer is connected to the AMP this way,
View attachment 81738

Using my current filter, the sound is much better, tighter bass, less "boomy"

OK. I am aware of this notion of connecting the sub to the speaker outs of the amp to retain the sound signature of the amp. Yet this really relinquishes some of the best features of AL. To achieve the best that AL can give you it would be preferable to measure the sub as a separate channel. What you get now is uneven speakers. Obviously it sounds better then with no AL but you are far from the full potential.

juicehifi · Mar 16, 2025

moy said:
Hi, Newbie here that also got lots of help from a friend, but still on learning path. Using version 2.0 Wanted to ask if the outcome of my measure are acceptable or what can I do to improve. I just read that increasing the memory to 160% and reducing time to 7 sec from 10 sec. Please see belowView attachment 81726

View attachment 81722 View attachment 81723
View attachment 81724

The measurement looks fine from here.

I recommend that you experiment with different target shapes in the bottom. What you have here may be perfect for you, but perhaps you should try something that doesn’t have the sharp bass peak as you are getting now. A bass that doesn’t rise, but starts to round off sooner sometimes sounds faster and deeper … and sometimes the whole speaker sounds faster and deeper. This is a matter of preference, and now you have the tools to find out yours…

moy · Mar 16, 2025

Ofer said:
OK. I am aware of this notion of connecting the sub to the speaker outs of the amp to retain the sound signature of the amp. Yet this really relinquishes some of the best features of AL. To achieve the best that AL can give you it would be preferable to measure the sub as a separate channel. What you get now is uneven speakers. Obviously it sounds better then with no AL but you are far from the full potential.

Many thanks for your help! HQplayer has a new feature to stream same music into 2 DAC’s. I have an extra DAC that I can spare to test, but don’t know if I can send the convolution filter of the sub as a 3rd channel into this DAC only. Will check! Although will be maybe 192hz / DSD128 instead of DSD512, for low frequency should be fine. Might need to ask for a 2.1 AL upgrade

moy · Mar 16, 2025

juicehifi said:
The measurement looks fine from here.

I recommend that you experiment with different target shapes in the bottom. What you have here may be perfect for you, but perhaps you should try something that doesn’t have the sharp bass peak as you are getting now. A bass that doesn’t rise, but starts to round off sooner sometimes sounds faster and deeper … and sometimes the whole speaker sounds faster and deeper. This is a matter of preference, and now you have the tools to find out yours…

Many thanks! This means have a flatter and wider mountain

instead right? Then the rest of the curve follows as previous correction curve?

juicehifi · Mar 17, 2025

moy · Mar 22, 2025

Testing Bernt suggestion!

Bobski321 · May 11, 2025

Question about "Max Correction"

Yesterday, I just realized that you can go under 1.0dB on max correction. I'm actually experimenting with 0.01dB max correction now.

Because I've never seen it ever suggested to go below 1.0dB max correction.... I'm just curious if that is not a recommended setting? Like, is there any potential problem setting it this low that I'm not apparently aware of?

Thanks

juicehifi · May 15, 2025

I prefer 6 dB and sometimes higher to get the result I want. But there’s no correct answer here.

moy · Friday at 12:02 AM

Hi! Got new speakers, Kudos C10, adjusted location of subwoofer, measurements where much balanced

For my preference, my setting just needs minor adjustment on a bit boomy base that comes on certain low frequencies. So I tested a very simple target

Here is what It looks like.

Got to say, this is the best outcome I got! just touching the low frequency area more, the boomy effect is gone, even at loud volume. The rest sounds more balanced without affecting much original sound. I'm updating to XO version and see if any more improvement can be achieved.
At this later stage will need support from the communiy!! Many thanks everyone and @Bobski321 for starting this very good thread !

Ofer · Friday at 1:44 AM

Enjoy the new speakers. The measurements that you posted are without the sub I assume.

moy · Friday at 6:42 PM

Ofer said:
without the sub I assume.

Many thanks!! No, its with the Sub on! Amazing is much balanced . I will need your support with my XO process _/\_

moy · Friday at 7:04 PM

Sorry, I'm a bit overwhelmed with all the features of XO, I have not much idea what I'm doing now, just did the measurements ( I use a focusrite scarlet 3rd as was suggested). Using version 2.0 was quite straight forward. XO has so much going on, any support will be appreciated.

Here is what I've done so far and generated my correction filters fo HQplayer.
For filtering measurement I selected the default option

Then I made the target design

Generated correction filters

Reading manual and trying to get an idea of the special features.

I tested the max filter lenght and compared to ver 2.0, the version XO sound is more bright and lively, and yet haven't use its full potential. (here first filters without TTD feature)

Got good CPU power so its fine for me using more taps. Convolution file is 8x bigger

Following @Bobski321 screenshots
FR simulation

IR simulation

With noise correction IR

Made and export similar to @Bobski321 , I changed it to 2dB the bosst, and I get a more beefy base, but not overpowered. The speakers are more "Free" as before but more controled on the base (less bummy but stronger than before) (used the default TTD)

I also added a higher frequency of 384.000Hz as suggested fo HQplayer Convolution filter ( I do to DSD512 to 1024 x48 upsampling)

Edit:
Simulated Impuse Response

So far just things getting better!

Ofer · 2025-11-01T03:19:29-0500

Just to be clear. The measurments you posted are with the sub running as a right speaker? is it still connected as you previously showed? like this?

moy said:
The subwoofer is connected to the AMP this way,
View attachment 81738

Using my current filter, the sound is much better, tighter bass, less "boomy"

Just to make sure. The measurements you have showed is with the sub connected like the picture above? If so it is quite amazing that both speakers are so identical, before correction, where it is obvious from the picture that the sub is much closer to the right speaker.

moy · 2025-11-01T04:11:32-0500

Ofer said:
Just to be clear. The measurments you posted are with the sub running as a right speaker? is it still connected as you previously showed? like this?

Just to make sure. The measurements you have showed is with the sub connected like the picture above? If so it is quite amazing that both speakers are so identical, before correction, where it is obvious from the picture that the sub is much closer to the right speaker.

Yes indeed, I'm thrilled to see this outcome, also the sub is more back in the corner and very balanced on frequency and volume, I didn't want any overpowering as well! Toda!

Ofer · 2025-11-01T04:59:13-0500

You are either very lucky and you don't need a sub or the connection has somehow changed. In the uncorrected response both(!) speakers start rolling of at 30hz. In your earlier post only the right speaker went down to 30hz. So either with your new speakers you don't need a sub or that now the sub plays, and is measured, with both speakers. Has anything with the connections changed?

moy · 2025-11-01T06:24:36-0500

Ofer said:
You are either very lucky and you don't need a sub or the connection has somehow changed. In the uncorrected response both(!) speakers start rolling of at 30hz. In your earlier post only the right speaker went down to 30hz. So either with your new speakers you don't need a sub or that now the sub plays, and is measured, with both speakers. Has anything with the connections changed?

Just relocate the sub more back to the corner behind speaker and adjusted the sub volume and frequency with the new speaker. Still wired to amp terminals using REL cable.

moy · 2025-11-01T06:27:08-0500

@Ofer maybe no need the subwoofer ! Will test with out it!

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