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  1. #1

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    Talking SDA-1C in my living room...

    i got the sda 1c today and am happy to report all is well
    they have never been opened up except for butchered binding posts
    already redid them... any andvice or suggestions for enhancing enjoyment of these great speakers?
    also are they 4ohm or 8ohm?

    thanks
    john

  2. #2

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    http://www.polksda.com/sda1creview.shtml

    It should be a 4 ohm set. Schematic is in the SDA Sticky at the top of forum.
    Last edited by inspiredsports; 01-19-2009 at 12:11 AM.
    VTL ST50 w/mods/RCA6L6GC/TlfnknECC801S
    CJPV-5 w/mods
    TT CJ Sonographe SG3 Oak/Sumiko LMT/Grado Wood Plat/Sumiko PIB2/The Clamp
    Musical Fidelity A1 CDPro
    Tuners w/mods Kenwood KT5020/Fisher KM60
    MF x-DAC V8, HAInfo NG27
    Herbies Ti-9/Vibrapods/MIT Shtgn AC1 IEC's/MIT Shotgun 2 IC's/MIT Shtgn 2 Speaker
    PSAudio Cryo PwrPrt Prem/ExctPwrEP15A
    Wlnt SDA 2B TL/Oak SDA SRS II TL-Sonicaps/Mills/Cardas/Cust SDA ICs/Mortite/Dynamat Extreme/TFLF Rings/FSB-2 Spikes
    NAD SS rigs w/mods
    GIK panels

  3. #3

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    Congrats!

    They are 6ohm

    Just make sure placement is precise and you'll enjoy them even more.
    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

  4. #4

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    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  5. #5

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    Quote Originally Posted by inspiredsports View Post
    http://www.polksda.com/sda1creview.shtml

    It should be a 4 ohm set. Schematic is in the SDA Sticky at the top of forum.
    You might want to pop the passive radiator to get an eyeball on the crossovers to make sure they match the schematic values if you are going to do the highly recommended crossover upgrade. Some are also upgrading the Interconnect Connection to Cardas and going with custom silver wire based Interconnect Cables with superior results
    VTL ST50 w/mods/RCA6L6GC/TlfnknECC801S
    CJPV-5 w/mods
    TT CJ Sonographe SG3 Oak/Sumiko LMT/Grado Wood Plat/Sumiko PIB2/The Clamp
    Musical Fidelity A1 CDPro
    Tuners w/mods Kenwood KT5020/Fisher KM60
    MF x-DAC V8, HAInfo NG27
    Herbies Ti-9/Vibrapods/MIT Shtgn AC1 IEC's/MIT Shotgun 2 IC's/MIT Shtgn 2 Speaker
    PSAudio Cryo PwrPrt Prem/ExctPwrEP15A
    Wlnt SDA 2B TL/Oak SDA SRS II TL-Sonicaps/Mills/Cardas/Cust SDA ICs/Mortite/Dynamat Extreme/TFLF Rings/FSB-2 Spikes
    NAD SS rigs w/mods
    GIK panels

  6. #6

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    Quote Originally Posted by Lasareath View Post
    Congrats!

    They are 6ohm. . .
    Hi Sal,

    Do you have a manual or something other than what I referenced. It's confusing in that it shows nominal 4 ohm, low of 3.9 ohms, but 6 ohms over much of the range.
    Last edited by inspiredsports; 01-19-2009 at 12:47 AM.
    VTL ST50 w/mods/RCA6L6GC/TlfnknECC801S
    CJPV-5 w/mods
    TT CJ Sonographe SG3 Oak/Sumiko LMT/Grado Wood Plat/Sumiko PIB2/The Clamp
    Musical Fidelity A1 CDPro
    Tuners w/mods Kenwood KT5020/Fisher KM60
    MF x-DAC V8, HAInfo NG27
    Herbies Ti-9/Vibrapods/MIT Shtgn AC1 IEC's/MIT Shotgun 2 IC's/MIT Shtgn 2 Speaker
    PSAudio Cryo PwrPrt Prem/ExctPwrEP15A
    Wlnt SDA 2B TL/Oak SDA SRS II TL-Sonicaps/Mills/Cardas/Cust SDA ICs/Mortite/Dynamat Extreme/TFLF Rings/FSB-2 Spikes
    NAD SS rigs w/mods
    GIK panels

  7. #7

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    The 1C is 6ohms nominal.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  8. #8

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    Quote Originally Posted by inspiredsports View Post
    Hi Sal,

    Do you have a manual or something other than what I referenced. It's confusing in that it shows nominal 4 ohm, low of 3.9 ohms, but 6 ohms over much of the range.

    Yes, I have the SDA Compendium.
    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

  9. #9

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    What did the previous owner do to the binding posts?
    JC approves....he told me so. (F-1 nut)

  10. #10

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    Talking thanks for the help

    :)the binding posts were broken off, missing the plastic lock nuts and basically abused. I replaced them with banana plug posts and replaced the original sda terminals with an rca jack. my next step is to replace the top and bottom caps with solid cherry wood caps with a piano gloss finish and recover the grills. as far as the side panels i was thinking about running a strip of cherry from top to bottom about 6 inches wide on the back edge and recovering the remaining side area with grill cloth.

    as far as the ohm rating, just so i understand, they are four ohm speakers on mon/wed/fri and 6ohm on tue/thu/sat and sunday should be a day of rest?

    thanks for your assistance and support guys:p
    john

  11. #11

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    the manual for the 1b shows 5ohm....

  12. #12

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    Quote Originally Posted by nooshinjohn View Post
    the manual for the 1b shows 5ohm....
    1B's and 1C's are not the same. They use different drivers.

    Why the concern about what the Ohm rating is?

    They are 6 Ohm nominal. They do go lower in the lower frequencies but as the word nominal means................the rating is an average over the entire freq range.

    H9

    P.s. Did you read the article link in post #2; that will answer your question plus a whole lot more.
    Last edited by heiney9; 01-19-2009 at 09:30 AM.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

  13. #13

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    i want to be certain that I am running them properly, as my yamaha reciever is currently set to 8ohm...
    .............................................lol i know already.... new amp!

  14. #14

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    Quote Originally Posted by nooshinjohn View Post
    i want to be certain that I am running them properly, as my yamaha reciever is currently set to 8ohm...
    That Yammy won't do them justice. I know it's all you have right now but don't play it too loud and start saving for better amplification. The 1C's will open up and sound 100 times better with quality amplification and a receiver just won;t do them justice.

    Enjoy

    H9

    P.s. You beat me to it. The Yammy will work in the mean time, just don't play it too loud
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

  15. #15

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    Set your Yammi to 4 ohms till you replace it.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  16. #16

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    nooshinjohn, My 1C restoration thread:

    http://www.polkaudio.com/forums/showthread.php?t=70931
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  17. #17

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    I just sold my Lsi15 this weekend and was finally brave enough to move my 1C to the living room. My wife didn't freak out but I was very pleased with how they sound. I got 1C months ago and never even attemp to hook them up. Mine are stock but in very good condition. I can't even imainge what they sound like upgraded.
    Main Gear
    Panasonic 50" Plasma, Polk LSi15 (Front), LSiC, LSi7 (Rear), Sherwood Newcastle AVP-9080, AM-9080 bi-amp to LSi15, AM-9080 bi-amp to LSiC and LSi7.

  18. #18

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    Quote Originally Posted by vlam View Post
    I can't even imainge what they sound like upgraded.
    I've done tweeter/xo upgrades on two sets of SDA's so far, and the improvement is spectacular.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  19. #19

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    Quote Originally Posted by nspindel View Post
    I've done tweeter/xo upgrades on two sets of SDA's so far, and the improvement is spectacular.
    I couldn't agree more.
    "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

  20. #20

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    Red face speaker pictures

    here are some pictures and information...
    near as i can tell they were build in february of 1988 as indicated by the inspection marks on the drivers. the serial # for left is 8331/8271 right...
    both cabinet tags state sda1, and no reference made to a,b or c models
    the crossovers are quite large and rectangular in shape as shown in the pictures.... ok how the @#!$ do I upload pictures... they are all about 2meg and the system allow 512k. how do i get them into a submittable format?

    thanks as always

  21. #21

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    Quote Originally Posted by nooshinjohn View Post
    ok how the @#!$ do I upload pictures... they are all about 2meg and the system allow 512k. how do i get them into a submittable format?
    This will allow you to resize, crop, etc...

    http://www.irfanview.com/
    "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

  22. #22

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    Default here they are

    thanks for the help in getting the images formatted properly...
    Attached Images

  23. #23

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    I use photobucket to upload my pics. Then I just take and insert the link into the add image button. This works very well.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  24. #24

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    nspindel said these might be sda1b's... any ideas?

  25. #25

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    they are 1C's

    they are one of the more desirable SDA 1's

  26. #26

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    Quote Originally Posted by nooshinjohn View Post
    nspindel said these might be sda1b's... any ideas?
    No, I didn't mean for you to think that you had 1B's. When you described your XO to me, I said that it sounds like my 2B XO.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  27. #27

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    sorry... my mis-understanding

  28. #28

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    That's a complete different XO than my 1C's.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  29. #29

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    perhaps f1-nut or another of our resident gurus has some input?

  30. #30

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    Wtf, looks like a PB SRS2 crossover.
    "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

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