Internal Polarity for SDA CRS

SDA_MAN
SDA_MAN Posts: 7
edited November 2006 in 2 Channel Audio
I have a pair of Polk SDA CRS with the twin SL-2000 silver coil dome tweeters...Anybody know the internal polarity for the stereo drivers and the SDA Drivers in the respective right/left speakers,(blue=hot, White=ground) I have recently tried some dayton 6.5 mid-bass drivers in these as all the MW 6503 drivers are shot. The speakers are very dynamic, but shrill at times, could this be the dayton drivers lacking where the original polk drivers dont? $48.00 per driver seems steep considering the build quality.
thanks
Post edited by SDA_MAN on
· Share on FacebookShare on Twitter

Comments

  • amulford
    amulford Posts: 5,020
    edited November 2006
    Welcome to the club.

    #1 - The crossovers are designed for the drivers Polk put in there. Chances are the Dayton's aren't really a good match. IMHO you should get them from Polk, as they have THE replacement.

    #2 - The drivers are different for the normal and SDA circuits. I would bet you bought four of the same drivers...

    #3 - The SL2000 tweeter are bright by nature. It's inherent in the design material. There are substitutions available from Polk that tame that considerably.


    You can call CS to get an answer to your original question.
    · Share on FacebookShare on Twitter
  • danger boy
    danger boy Posts: 15,722
    edited November 2006
    SDA_MAN, i'd start with replacing the Sl2000 tweeters. it's worth it. You may not notice any sound difference, but your ears will thank you.. it helps kill the shrill the SL2000 silver dome's suffer from.

    I'd also get the correct mid bass drivers from Polk or find some on Ebay. the CRS's, are a favorite of alot of SDA lovers around here. IF they are in good condition or better. they are worth doing the driver replacements.

    Do you have the SDA umbillical cable that runs between both speakers?
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
    · Share on FacebookShare on Twitter
  • SDA_MAN
    SDA_MAN Posts: 7
    edited November 2006
    Yea, I have had SDA's for years, which tweeters are used for thr SDA circuit vs the regular stereo line?, I got a box of polk stuff...the daytons sound ok, I had them laying around, so I tried them...upp the bass response, but they sound a bit "challenged"...thank you
    · Share on FacebookShare on Twitter
  • SDA_MAN
    SDA_MAN Posts: 7
    edited November 2006
    I have the correct interconnect cable, just thinkin' of getting some rta-11's, less problematic, maybe get rid of all polk stuff..
    · Share on FacebookShare on Twitter
  • schwarcw
    schwarcw Posts: 7,335
    edited November 2006
    Welcome to the Club Polk Forums SDA Man!

    The CRS's have the same SDA and stereo drivers, MW 6503. I'm not sure of the internal polarity. I would also recommend as some others have suggested that you replace the SL2000 tweeters with the RD-0194's. Polk also has replacement drivers that are designed for your cabinets. Good luck!
    Carl

    · Share on FacebookShare on Twitter
  • jvarnadoe
    jvarnadoe Posts: 52
    edited November 2006
    I second that. The RDO-194's make a huge difference.
    Polk collection:
    SDA SRS 2.3 w/RDO-194's
    SDA 2 w/Vampire BPHEX
    M5jr+
    CS245i
    RT15i
    RT25i
    RT35i
    LC65i x2
    · Share on FacebookShare on Twitter
  • SDA_MAN
    SDA_MAN Posts: 7
    edited November 2006
    Thanks to you all for your advice and opinions, I will check out the RDO-194's and acquire 4 MW 6503 drivers...anybody know where to find these parts? By the way, I refinished my SDA CRS to black ebony hi-gloss, at least they LOOK good for now...:)
    · Share on FacebookShare on Twitter