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HELP AFTER MY MODS, My tweeters are subdued and weak-

So I have a pair of Mirage M1 speakers, I changed the caps in the crossovers to Jantzen Superior Z (for the tweeters) and standard z for the mids and bass.
 
I also changed the internal cabling to Supra Classic 2.5.

First Impressions-  Not burned in yet
The highs are there but really recessed in the background. Theres a song I reference and it has a steel guitar solo, I can bearly hear it through the vocals because its seems recessed so far back.

SO HERES THE QUESTION- Is that a symptom of unburned in cables and or caps, or is that just what Supra cables give you?

When I changed the internal cabling a few years back on the same model speaker, I used DH LABS t14 Silver plated cable, This had the opposite effect, it was super bright and fast, but it smoothed out and the brightness relaxed, leaving a lot of detail but not so much your ears bled.

But here its the opposite, its dull on the top end and the vocals kind of take over and blur out the top end.

idahifi
timlub
1,649 posts
 
well that is partially what I said... I said that the electrolytics that you replaced are all in the midrange and that your tweeters should be functioning correctly. Either the issue is in the midrange or you have a bad tweeter diaphragm from overheating during soldering.  Next I believe that if a cap is most likely not bad, but when you had the Jantzens in that you could have had a bad solder joint.... next,  I said that the only 2 caps that could have much if any ESR stray is the 2 - 2200 mic electrolytics, you said that you replaced those with the exact same value. Even those, the difference should be minimum. 
and no,  this is not an ESR problem ... unless for some reason a cap was overheated at some point in its history any you have a bad ESR cap... of course ESR is an AC measurement and the cap ESR is far above the crossover frequency.... 

idahifi OP
100 posts
 
Well I figured I wouldn't have gotten all right, but I took a stab at it. 
I don't think the tweeter is bad, cuz it sounds fine with the old caps or If the Tara cables aren't used. I know it's not a mid-range issue cuz I can clearly hear the tweeter as faint when the jantzen and Tara cables are used. Now if a cap was over heated I guess that could have occurred, but what I don't understand is which cap would have been ruined. As you pointed out, the electrolytic caps I replaced don't effect the tweeter, cuz there in the mid-range / bass circuit, yet when I replaced those caps the problem resolved it self.
So the cap that would have been bad due to over heating, would have been one of the mid-range/bass driver caps I swapped with an electrolytic, but I thought those couldn't effect the tweeter. And the tweeter caps weren't changed out, but the problem resolved when the bass mid caps were swapped.
Quite the quandary.
idahifi OP
100 posts
 
What's clear is the problem resolves when the caps in c1, c3, c4 are swapped with the old electrolytics.

imhififan's avatar
imhififan
652 posts
 
I think what Ill do is buy a tester that can check the value of the caps as well as check the ESR and see what pops out at me.
Totally agree, and this link is worth a read:
http://www.diyaudio.com/forums/multi-way/282847-original-electrolytic-caps-better-than-new-upgraded-...
timlub
1,649 posts
 
Sean,  also as I mentioned in email,  the 2200 mic caps are big enough to make a difference and they are polarized,  so to reiterate my email... could it be that you had polarization backwards on 1 or both caps?  Again,  these 2 caps have enough resistance that they could matter and they are polarized... Also being 35V electrolytic,  I would much prefer to see you replace those with a higher voltage polarized electrolytic.  And to ask the same questions that I asked in my emails to you.... being these are all in the mid circuit,  are you sure that it is the tweeter that is the problem?  I haven't seen an answer to that.   

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