Starting with my ce...
 

Starting with my center channel  

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Lindelium18
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15/08/2019 10:33 pm  

 

Well, I didn’t have time to setup my testing gear but I couldn’t wait any longer to at least hear these Esoteric’s. Um...yeah, they move some air!


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Lindelium18
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15/08/2019 10:41 pm  

I actually have a question for @123toid but anyone can chime in. So, for this specific speaker, in terms of designing the crossover, would you get frequency response graphs from the spot it is going to be installed or from the “best” control location (ie suspended outside etc)?  My first thought was the later but the more I think about it, why not specifically design and calibrate for the room it’ll be in?


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123Toid
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15/08/2019 11:40 pm  

@lindelium18

This is one of those, there is no wrong answer.  If you know it is staying in that room, then you might want to design it around the room.  However, if you plan on moving it or want the ability to know you'll have good sound no matter the room, then you will want to design it outside.  Btu really there is no wrong answer here. 

By the way, looks like those can really move some air!  Seriously though, in my Eso7 build, just TM's, I had them playing pure direct and I didn't feel I needed a sub.  Of course, this was in a small room, but I was very happy with them. 


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Lindelium18
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16/08/2019 7:04 am  

@123toid

Yeah, I believe that!  I think my f3 is like 33hz or something like that!


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Lindelium18
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16/08/2019 1:59 pm  

@123toid

Since it is a center channel, and ideally will be there forever, I think I’m going to get my graph in the room. 


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Lindelium18
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16/08/2019 4:04 pm  

@123toid

In your experience, how different is frequency response reading in room vs. factory?  I just did readings from all the drivers and The Eso’s were pretty different than What Dayton shows...


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123Toid
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16/08/2019 4:07 pm  

@lindelium18

Typically, Dayton is one of the best with measured response in their frd files and what you receive.  But the Eso's are not one of them.  I had a nasty peak around 1-1.5khz.  I'll have to recheck my measurements to be sure.  It definitely was audible.  I used a zobel to get it under control, but you could also use a notch filter.


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Lindelium18
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16/08/2019 4:48 pm  

BF36CA44 71E2 4CD3 80B7 DFE98E2A15F3

@123toid

Heres what I got...


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123Toid
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16/08/2019 5:22 pm  

@lindelium18

Is that both playing at the same time?  It looks like you are getting cancellation 


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Lindelium18
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16/08/2019 6:26 pm  

@123toid

Yes. They are wired in parallel. 


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Lindelium18
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16/08/2019 7:42 pm  

@123toid

Something I should be doing differently?


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123Toid
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16/08/2019 11:42 pm  

@lindelium18

Take a measurement of each.  If you are getting cancellation, you will see it in those measurements.


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Lindelium18
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17/08/2019 10:31 am  

@123toid

Left Esoteric:

image

 

Right Esoteric:

image

 

Both Esoterics:

image

 

All three graphs together:

image

 

It does look like I may have a little cancellation but it also looks like the drivers (in this enclosure) has issues between 70-120hz... which, for a center channel, is not good.  So, I’m open to suggestions on my next step... 


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123Toid
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17/08/2019 10:53 am  

@lindelium18

You are having one of the same issues I had, which is that hump between 1-2Khz.  You will need to address that with either a zobel or a notch filter, otherwise that will be harsh on your ears at times.  As far as the 70-120hz.  Do you have any impedance measurements?  That will help us see if this is a box issue or a room issue.


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Lindelium18
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17/08/2019 8:19 pm  

@123toid

Seeing as I do not have a DATS as of yet (come on V3!!!), I don’t have any impedance measurements. Would moving the speaker in the room show enough change?  The room is 14 x 16, currently facing in the 14’ direction. 


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