The two 2200uF
polarized electrolytic back to back
in series
to form a non-polarize
cap.
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.
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.
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- 78 posts total
Thanks hififan for that link. Hey Tim, so I double checked the stripe on the polarized caps against a photo I had. And it matched up correctly. I replaced it with a 35v cuz that's what was in it before. I'm fairly certain it's the tweeter that's faint. I suppose the mid-range could also be faint. If your interested go to the following link (YouTube) fast forward to 117 and listen to guitar little solo where he picks the strings. It plays until 126 and then repeats. I can hardly hear that solo, it's crazy I can hear that on any system I've had, but with this new set up it's nearly non existent. So to answer your question, I think it's the tweeter, as it sounds really faint but I suppose it could be the mid as well and I just didn't realize. |
Another way to go is with bi-polar electrolytics. All caps in parallel add, but in series they divide. Using 2 x 2,200 uF caps in series is the equivalent of a single 1,100uF. I couldn't find a single bi-polar electrolytic at Parts Express, so I suggest a pair of these: https://www.parts-express.com/cat/non-polarized-electrolytic-capacitors/1385?N=19844+4294967118+4294... plus one of these: https://www.parts-express.com/cat/non-polarized-electrolytic-capacitors/1385?N=19844+4294967118+4294... Put them in parallel instead of in series. Again, you’ll need to compare the final ESR of the 3 parallel caps to the original serial. I suspect you’ll end up with a much lower ESR and need to adjust. My guess is your original serial was around 2-6 Ohms of ESR. With 3 parallel, modern bi-polar caps, you'll end up with around half. Best, E |
- 78 posts total