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  1. #1

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    Default 1 cap...or many caps...

    doing another speaker refurb soon was wondering is there a change in the sound if you use just one cap, say your value is 33uF...or would it be better to have 3 - 11uF...? or is it different for lows and highs...?

    or is there no difference at all...?
    NAD 2100 - NAD 1020 - Project Debut Carbon with speed box S
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  2. #2

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    If you must use multiple caps, use 2, 3, 4, etc... of the same value. Don't use different values, IME, it has a negative effect on spatial cues.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

  3. #3

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    sorry but thats not the question....
    NAD 2100 - NAD 1020 - Project Debut Carbon with speed box S
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  4. #4

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    Face answered your question, "If you must use multiple caps....", which means use one cap if at all possible.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  5. #5

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    much easier to just say no, its better to use just one...

    then the discussion is over and I say thanks...
    NAD 2100 - NAD 1020 - Project Debut Carbon with speed box S
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  6. #6

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    It is a good question and, for speakers, you are better off with one cap. If you can't find the precise value, you can go with something within 5% and still be good; perhaps 10%. As said above, if you must use multiple caps, try to keep them to equal values. For example, if you need 16uF, don't use a 15uf and a 1uF in parallel. Use two 8uF in parallel instead or just go with the 15uF. I know the math works but it just does not sound right. I have tried it.

    Now I seem to remember reading that there may be a performance advantage of multiple caps in power supplies vs fewer large caps.

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  7. #7

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    it is also possible to have Sonic Craft make custom values if you have problems finding a certain cap. I am not sure as to how high a value they will make.
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  8. #8

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    Quote Originally Posted by 11tsteve View Post
    it is also possible to have Sonic Craft make custom values if you have problems finding a certain cap. I am not sure as to how high a value they will make.
    Soniccraft doesn't actually make custom values. Like many manufacturers, they do a production run. The bulk of the run will fall within the 5% tolerance (hopefully). A small portion will be above and below, and those are binned separately, also know as salvage parts. When you ask for a custom value, they hand pick from those binned parts, measure and match them as close as possible. There's a slight premium for them.
    The largest custom value I've received is 34uf.
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    thanks, My question was just me wondering about this....I just thought I read somewhere where there was a performance advantage to multiple smaller (same value of course) vs one large...
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  10. #10

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    Quote Originally Posted by BKphoto View Post
    thanks, My question was just me wondering about this....I just thought I read somewhere where there was a performance advantage to multiple smaller (same value of course) vs one large...
    Depends on the application BK. In a Crossover, best practice is using a single cap of the correct value. That's not always possible, so using 2 or more equal value caps is the next best choice. Using a smaller and a larger cap to make up the desired value is the last thing you want to do, as Face pointed out. The smaller cap will react faster than the larger cap, and can result in some odd artifacts in the signal. Power supplies are a different matter all together. I'm not that versed in the benefits or trade-offs of larger caps vs multiple smaller caps.
    Home Theater/2 Channel:
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  11. #11

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    Quote Originally Posted by westmassguy View Post
    Soniccraft doesn't actually make custom values. Like many manufacturers, they do a production run. The bulk of the run will fall within the 5% tolerance (hopefully). A small portion will be above and below, and those are binned separately, also know as salvage parts. When you ask for a custom value, they hand pick from those binned parts, measure and match them as close as possible. There's a slight premium for them.
    The largest custom value I've received is 34uf.
    thaks for the clarification. I was passing along info I was given which was obviously incomete.
    Polk 5jr+
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  12. #12

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    Quote Originally Posted by 11tsteve View Post
    thaks for the clarification. I was passing along info I was given which was obviously incomete.
    You're welcome. I just didn't want anyone calling them thinking they can order any value they want.
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  13. #13

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    Quote Originally Posted by westmassguy View Post
    The largest custom value I've received is 34uf.
    I bought a couple of these when I re-built my 10B XO's. Found Sonic Craft to be very friendly and efficient (just not "cheap").
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  14. #14

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    Quote Originally Posted by StantonZ View Post
    I bought a couple of these when I re-built my 10B XO's. Found Sonic Craft to be very friendly and efficient (just not "cheap").
    As with many things, you get what you pay for. They're one of a very few, that will measure for custom values, and match them.
    Home Theater/2 Channel:
    Front: SDA-2ATL http://www.polkaudio.com/forums/show...ished...Almost
    Center: Custom http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat, H-Nuts, BH5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer


    www.dhsspeakerservice.com

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