Xilica 4080 - Page 10 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #91 of 94 Old 04-13-18, 02:35 PM Thread Starter
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Re: Xilica 4080

Hi John,
I checked in the preferences and found a couple things different than what I remember, I won't know if that was the problem until tomorrow when I setup and measure the room. From the look of what you posted it looks like everything is as it should be? If what you posted is correct to me that looks like where I want to be? As I said it still sounds awesome other than maybe a slight bit hot on the HF end but, that may be due to the source material. Your advice after seeing your result would be to do what? Thanks.
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post #92 of 94 Old 04-13-18, 07:40 PM
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Re: Xilica 4080

Jay,
The timing/phase rotation looks good - no reason to think there is a problem in that regard.
The SPL response of the 2 channels is very similar so no problems in that regard either.
The SPL of A + B is very similar to my preferred house curve:
Xilica 4080-post-92-spl1.jpg

There are no significant concerns. If you just want to make a small adjustment to both channels that may be worth a try you could make the EQ adjustment below. I would not think this would be a notable improvement it is just something to try if you are looking for a minor touchup.
Xilica 4080-post-92-spl2.jpg

Below is the same adjusted response, but using the psy smoothing instead of 1/24 octave. I like to look at the data with various levels of smoothing, but recently have been most influenced by psy smoothing recently.
Xilica 4080-post-92-spl3.jpg

If you want to address the Hot HF specifically, you can just adjust the house curve accordingly and reset your overall EQ to match. It's really not likely I can suggest effective changes for you. Your own experimentation of with house curve/EQ changes is best route to follow. Good luck!
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post #93 of 94 Old 04-13-18, 09:07 PM Thread Starter
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Re: Xilica 4080

John,
Thanks so much for having a look much appreciated, after reading you post and seeing your earlier work with regard to inverting the right channel in the impulse window I feel like it is real good. I mean to me the channels individually look like what I consider a good match, only did I question it when I looked at both channels together. I am thinking that because the right channel was inverted that threw off that individual response? Once I saw your corrected response I felt like that's what it should be based on the left and right individual responses. I am gonna test some tomorrow to be sure my feeling now is that my TT is in need of a minor adjustment because it is where I am hearing the hot HF. Thanks again.
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post #94 of 94 Old 04-14-18, 12:17 PM Thread Starter
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Re: Xilica 4080

Ok John,
I have tried everything I can think of and nothing I do will change the right channel back to a positive polarity!!! I am exhausted trying to figure this out with no ground gained. I will need your help to figure this out, send me a message and I will call you when you have time.
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