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Posted

Hi all,

 

Hoping to get your thoughts on the likely reason for my DIY speakers (Zaph SR71 – https://www.stereo.net.au/forums/topic/62086-zaph-sr71-my-first-decent-speakers/) sounding not quite right to me.

I am mostly very happy with the speakers and I don’t think this is related to a significant issue such as a miswired crossover, out of phase etc. I think its more likely just a case of the tonal balance not being to my taste. But being a well known and respected design I’m a little surprised that my experience doesn’t seem to match that of others I’ve read online. I’ll attempt to describe what I’m hearing..

 

It’s a slightly forward or brash sound. I can’t decide whether its related to the midrange or higher frequencies or somewhere in between but there is a slightly fatiguing character to the sound, perhaps best described as the opposite to a laid back sound.

It is definitely more pronounced on certain types of music. I don’t really notice it with acoustic and vocal based music or electronic music. But it is  very noticeable on rock music, electric guitars etc. I usually listen to a lot of heavy metal but not on these speakers... the tonal balance sounds just wrong, as if a load of low frequency energy is missing. Which seems odd because the speakers certainly put out plenty of bass and the tonal balance of tonally darker acoustic or electronic music sounds fine.

 

I have experimented with absorption material (cushions) behind the speakers to remove reflections, as well as speaker placement. The former helped a bit and the latter helped quite a lot (I ended up placing the speakers closer to the rear wall than recommended by the designer, they are now about 20cm off the wall, which obviously boosted the bass). However, the underlying problem I have with the sound is still there.

 

I have taken some measurements. The below plots are measured from the listening position. I am new to speaker measurement so let me know if different measurements or plots would be more helpful. Could the apparent (slight) increase in SPL around 2-5 khz (most pronounced in the right channel measurement) be a factor in what Im describing? Or the dip around 150-400hz?

 

I am aware of the designer’s options for tweeter level adjustments and think I will try this next, however would be interested in any thoughts on whether there may be something else going on?

 

Two things that have crossed my mind but hopefully you can confirm are unlikely to be the cause..1) I didn’t recess the tweeters quite flush, the tweeter flange sits about 1mm proud of the speaker baffle.. 2) the cabinet is made from 16mm MDF, I had planned to use 18mm but bought the wrong timber. The cabinet is fairly well braced (2 braces side to side and 1 brace front to back) but perhaps the thinner walls are creating a boxy sound?

 

Equipment being used: Aries mini streamer connected to Musical Fidelity MS3i integrated.

 

Cheers

Dan

both channels_no absorption.jpg

left_no absorption.jpg

right_no absorption.jpg

Posted (edited)

Have you allowed for woofers to run in after about 1-2 weeks. You could play it in a closed door room at moderate levels for a few days to speed up run in.

 

The freq plots looks uneven around some freq like up around 600hz and then tweeter rolls off, which accounts for the tone balance you are hearing. Perhaps increase tweeter response to be more even.

 

Dont think the 1mm recessing issue would do much. Try inverting the tweeter polarity and switching amp cable positive and negative.

Edited by Al.M
Posted

Hi AI.M, thanks for the response. I never really took much notice of the peak around 600hz because I thought that part of the range was closer to the low range / bass and therefore not contributing to my forward / brash sound issue. Am I wrong here - is 600hz in the midrange and possibly what I'm hearing? 

Yeah the speakers are 4 yrs old so well and truly broken in. I had dismissed the idea of a mis wired tweeter because I thiught that would result in a more obvious sound issue like 2 speakers connected with revers phase - but perhaps I need to double check the driver wiring to the crossover.

is that high frequency roll off more steep than it should be? I have never thought that I'm missing out on high frequency / treble detail. 

Thanks

Posted
  On 22/02/2019 at 3:31 PM, danwilyams said:

I have taken some measurements.

Expand  

Nicely presented.   

 

A lot of what you see in the data is caused by the room, and the measurement technique.... and it is very hard to draw sweeping conclusions from this limited data  (this is the first big lesson people get about "measurements", is you have to be very "skeptical" and "critical" of what you see, otherwise they tell you things which aren't really there)

 

 

For the dip in the 100 to 400 range, you're seeing the room and not the speaker .... You can try moving the speaker and listening position to improve this ... but it's not a problem with the speaker.

 

Over about 5khz is almost certainly caused by the measurement distance .... You can confirm this by taking a measurement on the tw axis, at <1m

 

Use a test track to try to ensure you have the speaker in phase ... and that they are an equal distance from the mic/listening position.   If this shows up a problem (or your not sure) then we can look at the data (phase response, impulse response) to try and work it out.

 

 

While it looks like there is "excess energy" at 3khz ....  and everywhere else is "too low".    What's actually happening is that the slight peaks (diffraction?!) at around 3khz, are not adding together.

 

You can see this by looking at the L and the R measurments, and knowing that the combined measurement should be 6dB higher.   eg. at 1khz, you have 70dB L and 70dB R and 76dB combined.      Where at at ~3Kh (the peak) you have 74dB + 74dB = ~76dB  (they should add to 80dB).

 

 

In all, I don't think there is anything big to worry about here.    Remember you cannot read too much into this limited data set  (you would need to make heaps more measurements, to be sure what is what).

 

 

Have a play with the tweeter level, and see what you think.

 

 

  7 hours ago, danwilyams said:

Two things that have crossed my mind but hopefully you can confirm are unlikely to be the cause..1) I didn’t recess the tweeters quite flush, the tweeter flange sits about 1mm proud of the speaker baffle.. 2) the cabinet is made from 16mm MDF, I had planned to use 18mm but bought the wrong timber. The cabinet is fairly well braced (2 braces side to side and 1 brace front to back) but perhaps the thinner walls are creating a boxy sound?

Expand  

1.   This can produce a severe wiggle in the response....  but 1mm is pretty small.   Don't worry.

2.   Not an issue (or at least not causing what you're reporting)

 

  • Like 2
Posted
  On 23/02/2019 at 12:11 AM, danwilyams said:

 is 600hz in the midrange and possibly what I'm hearing? 

Expand  

What I think is more likely, is that you don't have "excess energy at 600" .... You have a hole from 100 to 400.   This hole is not part of the speaker .... but the room sound (reflections and cancellations).     Try moving the speaker and/or the listening position, and taking lots of test measurements to see if it changes/improves, etc.      Even if it doesn't improve, how it changes with the different location, can give hints as to the true root cause.

 

With your listening distance  (can you tell us also how large the room is, and where in the room things are located - looking for how close walls are the speakers/mic) you will have very low resolution in this frequency range .... even to the point where the data might be better "ignored" completely.

 

 

  41 minutes ago, danwilyams said:

because I thiught that would result in a more obvious sound issue like 2 speakers connected with revers phase

Expand  

It should be quite obvious.    Fire up a "phase test track" where it plays "in phase" which should be in the middle, and "out phase" which should sound very wide/diffuse.

 

  41 minutes ago, danwilyams said:

is that high frequency roll off more steep than it should be?

Expand  

Take a quick measurement (of one speaker only) with the mic on the tw axis and less than 1m.

  • Like 2

Posted
  On 22/02/2019 at 3:31 PM, danwilyams said:

..... Could the apparent (slight) increase in SPL around 2-5 khz (most pronounced in the right channel measurement) be a factor in what Im describing? Or the dip around 150-400hz?..

Expand  

Have you tried equalising?   If you can run Foobar you can learn so much in just a few minutes of trying different settings in the Graphic Equaliser during playback. This can be very informative in which frequency bands affect the sound in what ways.

 

The suck out in the 100-500Hz range is something I wouldn't enjoy. I imagine just that suck out might sound thin, forward and fatiguing. Equalising may help.

 

It wont help with side wall reflections. Do you have your speakers near the side walls with little or no toe in and side walls that have hard surfaces but with different designs and furnishings by any chance? 

Posted

Wow thanks for the informative responses guys. Once I get home I will properly digest the info and look into those suggestions. It sounds like the missing 100-500 range might be a big part of the picture and something that needs to be investigated with room placement and measurements.

  On 23/02/2019 at 1:56 AM, Nada said:

Do you have your speakers near the side walls with little or no toe in and side walls that have hard surfaces but with different designs and furnishings by any chance?

Expand  

This is pretty accurate... Less than 1m to side walls. One has a couch against it and the other glass window / Venetian blind. Also the couch protrudes slightly in front of the speaker so probably having an affect on reflections etc. there is direct line of sight from the listening position to the tweeter but the midwoofer is partially obscured by the couch protruding from the side wall. 

I will investigate and report back.

cheers 

Posted
  On 23/02/2019 at 6:11 AM, danwilyams said:

It sounds like the missing 100-500 range might be a big part of the picture 

and something that needs to be investigated with room placement and measurements.

Expand  

This region is unlikely to be caused by the speaker itself .... and is very unlikely to be a good candidate for EQ.    If you EQ this region the measurements will "look good but sound bad".

 

The data in this region will be very inaccurate and low resolution.... so you shouldn't read too much into it.

 

If you take "heaps of measurements all over your room"... and then overlay them, and adjust their levels so they're roughly the same, this might allow you to see a trend which could be insightful  (or raise more question for you, which the answers will prove insightful) ;) 

  30 minutes ago, danwilyams said:

This is pretty accurate... Less than 1m to side walls.

Expand  

Experiment with the angle the speaker is firing.   I would suggest that the speakers "cross" in front of you.... perhaps even half to a meter in front of you.

  • Like 1
Posted
  On 23/02/2019 at 6:52 AM, davewantsmoore said:

The data in this region will be very inaccurate and low resolution.... so you shouldn't read too much into it.

Expand  

Thanks again.. Would you mind expanding on this... Do you mean that even though the measurements show a dip here it may not be real in the context of listening experience? I get that it's not speaker related but room acoustics related. But im guessing that the measurements suggest that I need to adjust speaker placement to improve the room response in this FR?

also, is there a good set of instructions that you could refer me to for making room measurements, optimising speaker placement etc. happy to search online myself but perhaps there is "bible" for this stuff that I should be aware of.

cheers

Posted (edited)
  On 23/02/2019 at 6:52 AM, davewantsmoore said:

If you take "heaps of measurements all over your room"... and then overlay them, and adjust their levels so they're roughly the same, this might allow you to see a trend which could be insightful  (or raise more question for you, which the answers will prove insightful) ;) 

 

Expand  

What about the intuitive method of directly playing with Foobar equaliser bands till it sounds really good and forget about the measurements? After all isn't the aim  enjoyment, so intuitively adjusting equaliser bands while listening is a highly valid method. It  doesn't look too accurate compared to collecting data but.

 

  On 23/02/2019 at 6:11 AM, danwilyams said:

 I will investigate and report back.

cheers 

Expand  

Maybe try Daves speaker placement advice first with extreme toe in to cut down on the sidewall reflections which might help decrease the upper stridency.

 

Your still left with the 100-500Hz room suckout. You could try perhaps pushing the backs of the speakers back into the side walls, then bring them away from the side walls, then try them at different lengths between the front and rear walls. If the speakers move out of a broad null into a node you might get heaps more response. Otherwise do the opposite and put the speakers at your listening position and aim them where they need to be and crawl around till the low mids fill in, mark the spot and put the speakers there. I've no idea if it will help but it will be informative anyway.

Edited by Nada

Posted
  On 23/02/2019 at 7:21 AM, danwilyams said:

Do you mean that even though the measurements show a dip here it may not be real in the context of listening experience?

Expand  

In short yes.    Explaining why is quite complex, and I'm not sure is needed here.

 

What you will hear is more complex than what this chart shows.    To get a bit of an idea, move the microphone all over the room, and take lots of measurements .... and over lay them all.   You will see that not all the measurements have the same, or any, dips.

 

  2 hours ago, danwilyams said:

But im guessing that the measurements suggest that I need to adjust speaker placement to improve the room response in this FR?

Expand  

Yes, that's what you should try.

 

Filling in this area with EQ, would be mostly a mistake.

 

  2 hours ago, danwilyams said:

also, is there a good set of instructions that you could refer me to for making room measurements

Expand  

You look to have done a good job already.     I think a mistake many people do, is that they think that taking a measurement is a really "precise" thing, and they they need to get the "perfect accurate" measurement, and then that data will tell them everything.    This is a mistake.

 

Making measurements.... is easy.   Interpreting them properly is much harder.... which basically boils down to understanding which bits of the chart cannot be trusted, and why. 

 

In short, I don't see anything yet way out of line with your speaker.     Move it around to improve the 100-500Hz region (and move your listen position if possible) ... toe them in a bit more, and watch the 3khz peak.    The top end rolloff is almost certainly due to your measurement distance/position..... measure right in front of the tweeter, to check.

 

If none of things things get you there, or just to see, try the tweeter level.

  • Like 1
Posted
  On 23/02/2019 at 7:25 AM, Nada said:

What about the intuitive method of directly playing with Foobar equaliser bands till it sounds really good and forget about the measurements?

Expand  

Sure... You can do that, but it often leads to "unnatural" results, that vary dramatically with each recording .... and rarely leads to "full improvement".

 

EQ is a very! poor way to address accoustic issues.... the measured data may give a clue as to what those issues are, and how to improve them.

 

Once you've identified the issues, and done whatever you can to improve them as best you can ..... then at the end of the day, you can twiddle the EQ knobs to whatever gives you the sound you like.

 

So, it isn't an either/or thing.... it's just you would be best to do the "EQ last".

  2 hours ago, Nada said:

After all isn't the aim enjoyment

Expand  

 

Yes.

Posted
  On 23/02/2019 at 9:50 AM, davewantsmoore said:

In short, I don't see anything yet way out of line with your speaker.     Move it around to improve the 100-500Hz region (and move your listen position if possible) .....

Expand  

The suck out from 100Hz to 500Hz seems like a particularly broad frequency attenuation range.  Wavelengths are from about 60cm to 340cm. What could be doing such a wide suckout in the room?

Posted
  On 24/02/2019 at 4:10 AM, Nada said:

The suck out from 100Hz to 500Hz seems like a particularly broad frequency attenuation range.  Wavelengths are from about 60cm to 340cm. What could be doing such a wide suckout in the room?

Expand  

 

Could be as simple as an open window, at least it is in my room, but at a different (lower) frequency range.  If it is a room issue, most likely it is more than a single mode, probably several at those frequencies (the density of modes increases with frequency). 

 

However, to my eye it seems like something is closer to the left speaker than the right speaker, or vice versa, which is affecting how sound spreads into the room.  An asymmetry, like a wall perhaps, or a partition.

 

Posted
  On 24/02/2019 at 4:10 AM, Nada said:

What could be doing such a wide suckout in the room?

Expand  

SBIR.   It's hard to know more without understanding what time window (if any) is applied to the data ... and so, what is th frequency resolution we're looking at.    ie.  is there a data point every 20Hz ... or every 200Hz ?!

Posted
  On 24/02/2019 at 4:29 AM, acg said:

it seems like something is closer to the left speaker than the right speaker, or vice versa, which is affecting how sound spreads into the room.  An asymmetry, like a wall perhaps, or a partition

Expand  

I've attached a photo which shows the room setup.. as you can see there is quite a bit going on around the speakers. the left speaker has a couch sticking out in front of it from the sidewall. The right speaker also has a piece of furniture temporarily stored beside it.

behind the listening position is another ~1.5m to the back wall and there is a lot going on there also... an opening to a hallway and an opening to another room on the left hand side and a small hallway/front door opening on the right hand side. I've always suspected that the asymmetrical room setup (and particulalry interferance from the couch in front of the left speaker) could be contributing to poor room acoustics.

 

Is it possible that placing the speakers on the TV cabinet, further away from the side walls and other sources of interference, would help? I will include this scenario when i next do some test measurements.

  On 24/02/2019 at 5:59 AM, davewantsmoore said:

's hard to know more without understanding what time window (if any) is applied to the data ... and so, what is th frequency resolution we're looking at.    ie.  is there a data point every 20Hz ... or every 200Hz ?!

Expand  

sorry for all the questions but would you mind clarifying what you mean here? I will be taking some more measurements so want to make sure I understand these things (e.g. time window and frequency) whether they are measurement or display settings?

 

Cheers

IMG_3144.jpg

Posted
  On 22/02/2019 at 3:31 PM, danwilyams said:

I am mostly very happy with the speakers and I don’t think this is related to a significant issue such as a miswired crossover, out of phase etc. [...]

 

It’s a slightly forward or brash sound. I can’t decide whether its related to the midrange or higher frequencies or somewhere in between but there is a slightly fatiguing character to the sound, perhaps best described as the opposite to a laid back sound.

It is definitely more pronounced on certain types of music. I don’t really notice it with acoustic and vocal based music or electronic music. But it is  very noticeable on rock music, electric guitars etc. I usually listen to a lot of heavy metal but not on these speakers... the tonal balance sounds just wrong, as if a load of low frequency energy is missing. Which seems odd because the speakers certainly put out plenty of bass and the tonal balance of tonally darker acoustic or electronic music sounds fine.

 

I have experimented with absorption material (cushions) behind the speakers to remove reflections, as well as speaker placement. The former helped a bit and the latter helped quite a lot (I ended up placing the speakers closer to the rear wall than recommended by the designer, they are now about 20cm off the wall, which obviously boosted the bass). However, the underlying problem I have with the sound is still there.

Expand  

The woofer has a break up peak at ~4.5kHz

 

The crossover is "Electrically, on the woofer we have a simple two component 2nd order network"

 

...this crossover should knock 15dB of f the peak, relative to the main signal level, but there may be enough left to disturb your listening experience.  The peak seems to be visible in your (R) speaker plot.

 

Could you try a sharp notch filter there to see if that solves the "fatiguing" character?

 

The free/easy ways I know to do add a sharp filter (if you don't already have EQ ability) is to use a PC / laptop as the source, and download:

 

Equaliser APO (free download) - adds layer of digital processing to all the audio, very customisable

Foobar (free download) - music player to which you can add a 31 band eq.  Not as flexible as Equaliser APO, but may be easier to use.

 

 

 

Posted
  On 24/02/2019 at 10:10 AM, danwilyams said:

Is it possible that placing the speakers on the TV cabinet, further away from the side walls and other sources of interference, would help? I will include this scenario when i next do some test measurements.

Expand  

 

There is a lot happening near the speakers in terms of early reflections which would certainly be contributing to the spl response at the listening chair.

 

If this was me, I would temporarily bring the speakers out into the middle of the room so they are still a couple of metres separated but do not have anything "in their face"......create symmetry...perhaps shift that couch some other nearby furniture out of the room for a little while.  Toe the speakers in a little, sit at about 85% away from the speakers that they are separated (not quite isosceles triangle) and listen to them.  The idea is to try to attenuate the speaker room and furniture interactions a little to see if they still sound brash.  Take some more measurements.  If they sound ok when you are getting a more direct sound then you've just found your problem and can work on a realistic solution.  If they still sound brash after trialling a few different positions then it is likely that the speakers are the issue and perhaps look at what @hollowboyhas suggested above.

 

Maybe even just try toeing the speakers in where they are may improve things a little.  It is trial and error for a while I'm afraid.

 

Of course, pack it all up and bring the furniture back in when you are finished, or there may be trouble...haha.

 

  • Like 2
Posted

Pretty much what everyone else has said, but I will add my comments in support ...

 

The L and R are so different that the room must be (almost) all of the problem.

 

The combined response has a broad shallow dip from 120 to 450Hz.  There is a lot of info in this range.  Think voices, both male and female, left hand of the piano and probably stuff like cello ... You are missing the richness but as a consequence you are still hearing the brash bits at higher frequencies.

 

The dip is very prominent in the L channel compounded by the lump at 50 and another at 500.  If you can fix the L then you might be getting close.  Trial and error is required.  Lift them, twist them, move them, get the lounge out of the way (at least temporarily). 

 

At the moment both L and R are pointing straight ahead.  You are actually listening off-axis.  Not many speakers are "good" off-axis.  Like others have rightly said, rotate them to point roughly at the listening chair.  This also changes the reflection angles off the front and side walls which could be of benefit.

 

Positioning is a powerful tool and even though an in-room response will never look perfect, it could be all that you need.

 

When you have exhausted "positioning" improvements then a few dollops of EQ (done with a gentle hand) to lop off the remaining peaks and boost the shallow wide troughs will help a bit more.

 

[I reckon that it's the lounge that did it!  Blunt instrument trauma.]

Posted
  On 24/02/2019 at 10:10 AM, danwilyams said:

Is it possible that placing the speakers on the TV cabinet, further away from the side walls and other sources of interference, would help?

Expand  

Maybe.

 

First, try turning the speakers.   Start with pointing the speakers directly at the listener position.   Then experiment with turning them further, so they fire at a point 1m in front of you.

 

  14 hours ago, danwilyams said:

I will include this scenario when i next do some test measurements.

sorry for all the questions but would you mind clarifying what you mean here?

Expand  

Yes.   In short, measuring your speakers in a room has some big problems which conspire to make the types of charts you posted "unlikely the be the whole story"

 

The "time window" refers to "how long the microphone listens".... and it's a massive trade off, because there are issues no matter what you do.

 

In either extreme:

 

1.   If the microphone listens a really short time:

 

  • Data below a certain frequency is completely invalid (incorrect)
  • The spacing between data-points is very long  (eg. 1 data point every 200 Hz)
  • The microhone stops listening before the sound reflected from the room arrives - meaning the data shows "just the speaker"

 

2.   If the microphone listens a really long time

 

  • Data is correct down to low frequencies
  • The spacing between data points is short  (eg. 1 data point every 5 Hz)
  • The microphone hears the speaker, and all the sound reflected off the room - meaning the data shows speaker+ room.    The problem with this, is that speaker+room, is different at every single point in space  (if you move the mic/ears 10cm, you'll see a different result.

 

REW is "room EQ wizard".   By default it is configured to listen a very long time, so it captures all the reflected sound from your room..... and tell you about what's happening below ~300 hz  (where the room dominates).

 

 

So .... assuming you haven't adjusted the default setting (and your mic listened a long time) .....  when you "see a problem" in your measurement ..... You cannot say that it simply because of the speaker.... and we cannot immediately say that "fix the speaker design"  (eg. modify the crossover, or EQ, etc.) is the solution.     ie. anyone speculating to "fill in the hole", or "cut off the peak" using EQ (or a change to the crossover, etc.) is likely fairly misguided.

 

In short, these "room" or "placement" problems are difficult to measure.... using EQ to fix them isn't simple, and usually isn't very effective.

 

-----

 

That was a very long response, to something I don't think you should worry about too much.

 

"Reading the tea-leaves" on your data ..... I think you should try two things.

 

Aim the speakers at you at minimum.... or cross them in front of you.   To experiment, you could turn them in 5 degree increments, and take a (2x) measurement (seperate L and R data) at each increment .... until they are crossing well in front of you.  Overlay the charts and see what the trend it  (and have a listen at each increment of course).

 

Move the speakers away from the back wall, if you can.    If you are up for it, I would recommend you try them out from the wall, even in positions which wouldn't be acceptable long term..... Just to see what they do to your measurements.

 

 

Note:   If you are taking more measurements ..... that you want to compare with the data you already have .... it's important to:

  • Keep the microphone in exactly the same location
  • Typically don't measure both speakers playing together.    We almost always want to see the L and R speaker data separately - playing the speakers together is only useful for very specific things.
  • Like 1
Posted

All above is good info, try the simple things first (toe in, moving towards and further from back wall/corners etc).

I am very partial to eq however takes a lot of trial and error (making your own mistakes as it were) before you really understand what is said above.

My advice, jump in and give it a go. You clearly have the ability to measure get a way to apply eq (mini dsp/pc based etc) and give it a go. You will have a ball doing it, learn a heap and find what puts a smile on your face.

As said above (knowing that Dave is going to get on his anti eq tirade) measure a lot over as many different places as possible (every listening position), measure for a long time (i crank it up so each measument takes about 3 minutes) and look at the data.

Then eq to your hearts content. I find some. Speaker's don't take much eq before they sound flat. Others I eq a lot (much more than any 'purest' would be happy about) and they sound better and better.

Find what works for you

  • Like 1
Posted

Thanks everyone for all the helpful advice. I will follow the suggested process of testing (by ear and measurements) all the different speaker positions and alignments and plot up that data to try understand it. I suspect this will then lead me down more than a few measurement / equalisation / room treatment rabbit holes! im sure this will raise many more questions before I get to the answers but that's half the fun I guess. Only trouble now is finding time to start shifting furniture and doing dozens of FR sweeps without getting myself in trouble.

Thanks again.. And I'll likely be back with more questions..!

Dan

  • Like 1
Posted
  On 25/02/2019 at 9:59 AM, danwilyams said:

Only trouble now is finding time to start shifting furniture and doing dozens of FR sweeps without getting myself in trouble.

Thanks again.. And I'll likely be back with more questions..!

Dan

Expand  

Don't over do it, or over think it.

 

If you're pressed, just measure one speaker where it is now, turning it to 5 or so different angles (until it would cross the other speaker well in front of you) ....   I know what it's like when the boss is angry cos they can't use the living room, and oh, by the way... whooooooopp!   (yelling from the other room:   last one, I promise)

 

At the end of the day, you can EQ to fix what you don't like ..... the measurements are really to work out what can be fixed with placement, etc.  (which will be a much better solve than EQ).    Room 'treatment' is unlikely to be the panacea (audiophile trends aside) that you've been convinced of, based on what you describe, and your data.

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