Rebuilding vintage crossovers

Jockos
Jockos Posts: 310
edited December 2006 in Vintage Speakers
I'm thinking of rebuilding my older polk speaker x-overs. I have 5B's, 11T's and 8T's. My experience with electronics is limited but I have soldered before. I'm not sure what I need to replace. I know from what I've read the caps, anything else? How about if the values of the caps are a little different from the specs of the originals. Also I don't want to spend alot and have been looking at the dayton caps. any thoughts and advice appreciated.

Thanks
Jockos
Post edited by Jockos on
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Comments

  • george daniel
    george daniel Posts: 12,096
    edited November 2006
    Sonicaps are my preference,but if cost is a factor,you might want to look at the solen pB series.
    JC approves....he told me so. (F-1 nut)
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  • jakelm
    jakelm Posts: 4,081
    edited November 2006
    Jockos, I'm not quite understanding. What do you want to accomplish? Is there something wrong with the xovers or do you just want to change out with newer parts?

    Jake
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
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  • Jockos
    Jockos Posts: 310
    edited November 2006
    I read in another thread were the life of the caps were about 12 years.
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  • jakelm
    jakelm Posts: 4,081
    edited November 2006
    I havent touched my crossovers and there about 25 years old. I must be lucky

    Jake
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
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  • F1nut
    F1nut Posts: 50,731
    edited November 2006
    You'll want to replace all the caps, resistors and polyswitches. Values should be within 10% of the stated value, but exact is always better.

    Dayton's are rebadged Solens, go with the Solen PB's if on a budget and nothing but Mills resistors. The polys can be had from Polk.
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • Jockos
    Jockos Posts: 310
    edited November 2006
    So is the daytons ok? Where would I find solen pb's? Also what value of polyswitch do I get. There's no value on the schematic.

    Thanks
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  • F1nut
    F1nut Posts: 50,731
    edited November 2006
    Eff the Dayton's. PB's are better, yet very affordable. There are a lot of caps on the market and Solen's are a good cap, not great, but good and a vast improvement over stock. Where the Solen's sort of fall down is in the high frequencies vs others available (at a higher cost), but again, they are much better than stock.

    Call Polk, tell them what models you have and they will send you the correct values.

    Solen caps and Mills resistors, http://www.partsconnexion.com/partscomponents.php
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • george daniel
    george daniel Posts: 12,096
    edited November 2006
    ^^^^^^ Partsconnexion has a sale going right now,soon to expire I believe,just might save you a few pennies. Good luck. ;)
    JC approves....he told me so. (F-1 nut)
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  • Jockos
    Jockos Posts: 310
    edited November 2006
    Thanks
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  • rocketman
    rocketman Posts: 16
    edited December 2006
    Auri caps is another good choice but at a higher cost.
    rocketman
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