RT2000P and CS400i crossover upgrade questions
dubyayoung
Posts: 13
Pardon my Noob ignorance in this matter, but I have some basic questions I am hoping you fine people will be able to help me resolve.
I purchased these RT2000P and CS400i speakers used a while back, but even in the time I have had them they have become a bit dull, especially noticeable in the CS400i center channel when trying to understand dialog. I have replaced the tweeters in all three speakers, and the midrange in one of the RT2000P. So now I am seeing that many people here recommend rebuilding the crossovers so I am looking into that. What I thought might be just a simple cap replacement has now dragged on a bit. First off, the caps used are not common sizes, and now I am reading that there are certain high end caps that people here recommend.
This doesn't even take into account whether or not I should replace the resistors or inductors.
My ignorance shines when trying to identify and replace the capacitors with proper replacements. In the photos attached here, there are larger yellow ones, which my Google search says are polypropylene, but I don't know, and what appear to be electrolytics, both black in color and blue, which I have no idea if that is significant or not.
So I would appreciate some of you fine folks offering me some guidance on what I should do, as for as just replacing the caps, or everything, and also what types of caps to use, and what may be even more important, where in the world do you go to purchase them (U.S. here).
Here are the quantities, values, and color of the caps shown in the photos needed:
1 34uf 50V 5% (black)
1 200uf 50V 5% (black)
3 9.0uf 100V 5% (larger yellow)
2 3.3uf 100V 5% (larger yellow)
2 400uf 50V 5% (black)
2 20uf 50V 5% (light blue)
Thank you!
Wayne
I purchased these RT2000P and CS400i speakers used a while back, but even in the time I have had them they have become a bit dull, especially noticeable in the CS400i center channel when trying to understand dialog. I have replaced the tweeters in all three speakers, and the midrange in one of the RT2000P. So now I am seeing that many people here recommend rebuilding the crossovers so I am looking into that. What I thought might be just a simple cap replacement has now dragged on a bit. First off, the caps used are not common sizes, and now I am reading that there are certain high end caps that people here recommend.
This doesn't even take into account whether or not I should replace the resistors or inductors.
My ignorance shines when trying to identify and replace the capacitors with proper replacements. In the photos attached here, there are larger yellow ones, which my Google search says are polypropylene, but I don't know, and what appear to be electrolytics, both black in color and blue, which I have no idea if that is significant or not.
So I would appreciate some of you fine folks offering me some guidance on what I should do, as for as just replacing the caps, or everything, and also what types of caps to use, and what may be even more important, where in the world do you go to purchase them (U.S. here).
Here are the quantities, values, and color of the caps shown in the photos needed:
1 34uf 50V 5% (black)
1 200uf 50V 5% (black)
3 9.0uf 100V 5% (larger yellow)
2 3.3uf 100V 5% (larger yellow)
2 400uf 50V 5% (black)
2 20uf 50V 5% (light blue)
Thank you!
Wayne
Comments
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Did I post this in the wrong category?
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https://us.v-cdn.net/5021930/uploads/attachments/4/6/7/2/8/18721.pdf
https://us.v-cdn.net/5021930/uploads/attachments/4/6/7/2/8/31163.pdf- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
VR3, thank you for the schematics. The center channel I have is the CS400i, not CS400. I just looked up the differences here in the forum and they said the CS400 was brighter, so they reworked the tweeter and crossover in the CS400i. What I noticed in the schematic was the capacitor to the tweeter in the CS400 is a 12uf, while mine is a 9uf. now I'm wondering if I put in a 12uf in mine if it will brighten it up some? These old ears of mine have lost a bit of high end over the years :-D.
Any other advice as to rebuilding the crossovers, or where to get good capacitors? -
Very good chances the overall schematics are similar
IIRC those old tweeters used ferrofluid which could dampen the highs and may need to be redone
Parts connexion
Parts express
Madisound
Hificollective.co.uk- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
I've already replaced all of the tweeters.
I've seen other discussions where people recommend using high end caps such as ClarityCap audio grade capacitors, or Audience auricap, etc. You don't recommend going that route? -
Absolutely, the only limit is your budget
Just Keep in mind they won't fit on the board- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
