3 out of 4 speakers possibly damaged?

[MAB]

I'm not sure there is a problem with any of your speakers. The pink vs. blue picture may very well be due to mic position. Did you measure the two from exactly the same mic position? If not, the difference you show is likely just the measurement, not the speaker.

Also, REW's capture button is your friend, and our friend too.

It's hard to compare directly photographs of your monitor, and saves taking pictures with phone and then uploading. And some of the angles are so tilted I can't read the legends or make a comparison.

For potentially damaged speakers, I measure impedance vs. frequency. You may not have the ability to do this easily (Dayton DATS is an easy way to do that).

You can also use an multimeter to measure the DC resistance, to see if there is a burnt driver or crossover component. Not as useful as an impedance sweep, but can catch some driver and crossover fails.

But I am not sure you have a blown speaker, am hopeful it is just changing mic position, so please confirm that part.

 

[raindance]

It seems like you might be using the microphone in your laptop instead of the measurement mic. That would explain the results not changing when you move your microphone. I've made the same mistake before using REW.

 

[MAB]

It seems like you might be using the microphone in your laptop instead of the measurement mic. That would explain the results not changing when you move your microphone. I've made the same mistake before using REW.

Yeah, that would explain many things.

 

[No_hair_left]

S

I'm not sure there is a problem with any of your speakers. The pink vs. blue picture may very well be due to mic position. Did you measure the two from exactly the same mic position? If not, the difference you show is likely just the measurement, not the speaker.

Also, REW's capture button is your friend, and our friend too.
View attachment 486733
It's hard to compare directly photographs of your monitor, and saves taking pictures with phone and then uploading. And some of the angles are so tilted I can't read the legends or make a comparison.

For potentially damaged speakers, I measure impedance vs. frequency. You may not have the ability to do this easily (Dayton DATS is an easy way to do that).

You can also use an multimeter to measure the DC resistance, to see if there is a burnt driver or crossover component. Not as useful as an impedance sweep, but can catch some driver and crossover fails.

But I am not sure you have a blown speaker, am hopeful it is just changing mic position, so please confirm that part.

I took a measurement, replaced the speaker with another one and took another measurement, the mic did not move, the mount in the ceiling is fixed so the angle, positions ect would be identical, I'll take some more measurements tomorrow at a higher spl during the day and use the capture

 

[No_hair_left]

It seems like you might be using the microphone in your laptop instead of the measurement mic. That would explain the results not changing when you move your microphone. I've made the same mistake before using REW.

Im using a mic connected to my pc, no laptop.

 

[No_hair_left]

Right I did measurement at 65db, reset everything, calibrated spl levels again it makes no sense to me, if I move the good speaker to a "bad position" it measures pretty much as it if was still in the good position, if I move any of the other 3 speakers into the good speakers position they measure like they had never been moved, if I move the mic when the "bad" speakers are in the good position it only adjusts the treble at the top end, makes no sense.

For whatever reason the section from 2k until 5k does not seems to want to change on any of the speakers, why?

 

[audiofooled]

Right I did measurement at 65db, reset everything, calibrated spl levels again it makes no sense to me, if I move the good speaker to a "bad position" it measures pretty much as it if was still in the good position, if I move any of the other 3 speakers into the good speakers position they measure like they had never been moved, if I move the mic when the "bad" speakers are in the good position it only adjusts the treble at the top end, makes no sense.

For whatever reason the section from 2k until 5k does not seems to want to change on any of the speakers, why?

I wouldn't worry about it too much, having a look at the design and this review and measurements by @joentell :

 

[No_hair_left]

I wouldn't worry about it too much, having a look at the design and this review and measurements by @joentell :

I still feel like there is a problem, makes no sense how one speaker can consistently measure the same and 3-6db louder no matter where I move it yet the other 3 I cant improve no matter where they are placed, 8-10db dips that won't change other then the top end on the other 3 speakers. Distortion looks fine.

If I take a measurement of the good speaker at 63db and do one with any of the 3 other speakers in the same place at 65db now it looks much closer, for whatever reason one speaker is considerably better then the other 3, given how much I paid for these things imported it just winds me up lol

Guess the compromise for me is increasing the volume of the other 3 speakers by 2.5 db.