3 out of 4 speakers possibly damaged?

[No_hair_left]

Any way to tell if my speakers are damaged?

I noticed one of my atmos speakers measuring better then the rest, red one 1st pic, when I swapped the speaker over for another one in its position instead I noticed it wouldn't measure the same, odd (second pic). The mount is fixed and the mic and spl are also fixed for this test meaning the one I swapped it for is in an identical position.

Then it gets even stranger with the other speaker in the better speakers position I noticed it measured the same as if it was still in its old position, wtf? (pic 3).

I then took all the other speakers and put them in the red circle position and sure enough they all measured identical to if they had never been moved (pic 4) didn't matter what way I moved the mic after all of that the 2k-5k dip just wont improve on 3 of the speakers.

Why? are they broken, is something else at play here.

The last pic shows one of them from the mlp then on axis about 1.5ft away, if I compare the on axis one to the original on I circled in red its much closer to it.

I dont understand how I can moved the speakers to a different location and they measure as if they had never been moved makes no sense

They are aperion audio a5.

 

[No_hair_left]

The red line is my top left speaker in its place, it tracks but is 3-4 db down from 2k at the same spl, I cant get the other speakers to even get that close.

If I isolate each one, blue line is my back right speaker in its place it seems they all track but are down 3-4db that starts from exactly 2k

 

[staticV3]

The mount is fixed and the mic and spl are also fixed for this test meaning the one I swapped it for is in an identical position.

Did you use the same amplifier channel for all measurements, swapping around the speaker wires between sweeps?

If not, then you have another uncontrolled variable.

 

[No_hair_left]

Did you use the same amplifier channel for all measurements, swapping around the speaker wires between sweeps?

If not, then you have another uncontrolled variable.

Same amp channel, same wire.

 

[Talisman]

Did you use the same amplifier channel for all measurements, swapping around the speaker wires between sweeps?

If not, then you have another uncontrolled variable.

Since these are Atmos speakers that require an installation with conduits and pass-through cables connected in a stable manner to a specific amplifier output, I imagine that he only replaced the speakers while keeping everything else unchanged.

 

[raindance]

You're not measuring using the microphone you think you're using... That's my take.

 

[Talisman]

Why do you say one "measures better"? How do you determine "better" if only one speaker measures differently? Perhaps it's the one outside the specs.
Also, do you have room corrections set in your AVR? That curve could simply be the room correction and be corrected in the speakers that seem to "measure worse" to you. Set the "pure" or "direct" mode, which bypasses the DSP corrections, when you do these tests.

 

[No_hair_left]

Why do you say one "measures better"? How do you determine "better" if only one speaker measures differently? Perhaps it's the one outside the specs.
Also, do you have room corrections set in your AVR? That curve could simply be the room correction and be corrected in the speakers that seem to "measure worse" to you. Set the "pure" or "direct" mode, which bypasses the DSP corrections, when you do these tests.

There is no dsp its all turned off and everything is reset to defaults, by better I mean if I move any of the other speakers into the best measuring speakers location and the spl is identical, the position is identical because it can't be moved and the mic position is identical as it has not been moved then I would assume that all the speakers would measure the same or within margin of error, they are all 3-4-5db down which in my eyes suggests something is wrong as that's a significant drop. If after all that I move the mic position and they still measure the same it makes no sense.

2nd post 2nd pic, different speakers in the exact same positions under the exact same circumstances, it tracks till 2k then is 3-5db down when it should be near identical given the lines are the same, makes no sense.

 

[No_hair_left]

You're not measuring using the microphone you think you're using... That's my take.

what do you mean? all i did was change the speaker over test the slp to make sure it was the same and then measure again

 

[kyuu]

I'm having trouble following what's being measured with each graph (no useful labeling). Why are there two curves on each graph? What does each show? Is there one that shows the measurement of one of the "good" speakers installed in the same place as the "bad" speaker along with the measurement of the "bad" speaker (in the same position)?

 

[No_hair_left]

I'm having trouble following what's being measured with each graph (no useful labeling). Why are there two curves on each graph? What does each show? Is there one that shows the measurement of one of the "good" speakers installed in the same place as the "bad" speaker along with the measurement of the "bad" speaker (in the same position)?

This one shows the good speaker vs the bad speaker (pink line is good) in the same position

 

[No_hair_left]

Thos one shows all 3 of the speakers individually measured in the same position, spl ect vs the good one

 

[No_hair_left]

This one shows a bad speaker measured in the good speakers position vs its original place

 

[No_hair_left]

and lastly this is a bad speaker in its original position and then an on axis measurement from about 1.5 ft

apologies for all the posts I have coked this one up quite a bit, my bad.

 

[Sokel]

How does their distortion looks like?
Did you go "Overlays" to compare them?

 

[No_hair_left]

How does their distortion looks like?
Did you go "Overlays" to compare them?

This is where I have to start googling as have no idea what any of it is. It says none of these measurements have td+n which looking online means I didnt take the measurements loud enough? I live in a flat so have to be pretty careful about noise

pic is the good speaker

 

[No_hair_left]

This is a bad one

 

[kyuu]

Just to confirm we're on the same page, the issue you're talking about is primarily the shortfall in energy above about 1.5kHz yes?

 

[No_hair_left]

Just to confirm we're on the same page, the issue you're talking about is primarily the shortfall in energy above about 1.5kHz yes?

Yes the drop after 1.5k, Im assuming thats the crossover but after that the other speakers cant match the good one in the exact same position, slp, angle. Its between 3-6db down for all the other speakers.

 

[Sokel]

This is a bad one

Nothing wrong there.