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  1. #1

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    Default Dual mono amp drive SDA 2b without IC

    Dear PolkAudio members,

    Anyone can help me to clarify this question:

    I have a non common ground amp. Can I use this amp to drive SDA 2b without using Interconnect cable?

    Thank you.

  2. #2

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    Yes, you can use non-common ground amps without an IC, or you can get an AI-1 IC, if your speakers are compatible with that IC. The AI-1 is designed to be used with non-common ground amps and certain models of SDAs. Unfortunately, I don't have the list of what speakers are compatible with the AI-1 IC, but it would be strongly recommended that you use the AI-1 if your speakers are compatible. Otherwise, you lose the SDA effect, which is what makes these speakers so great.
    Are you part of the dirty digital peasants or a member of the great Analog Master Race?

    SDA Recommended Playlist https://docs.google.com/spreadsheet/...FZCRkdxYXVNanc

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  3. #3

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    The 2B's would have to be Pin/Blade and be made after a certain date and that date is figured out by your serial numbers.

    Are the 2B's Blade/Blade or Pin/Blade ?
    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/


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

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  4. #4

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    You can but they won't sound like they should and actually pretty bland. You are better off getting a common ground amp and using the interconnect.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  5. #5

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    What amp are you using? Did you check the negative post to see if it is a CG or not? I've got a pararsound that is a dual mono design with SDA2As using the interconnect. I called parasound to make sure the amp could handle it. You could also build the AI-1 interconnect cable to use with non CG amps. Best of luck, and welcome to club polk

    -Ted
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    Amps:Parasound HCA 1000a
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    Life's short, Listen to SDA's
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  6. #6

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    If your speakers are compatible you can buy Lasareath's factory original AI-1 here: http://www.polkaudio.com/forums/show...ith-your-SRS-s

    Or go here and learn how to make your own: http://www.polkaudio.com/forums/show...t-Project-Pt.1

    Good Luck!
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer

  7. #7

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    Thank all of you very much. I am using Power Amp 2 from Proceed. Proceed confirmed non common ground and negative terminal cannot tied together. My SDA set is Pin/Blade and serial number is higher than 14115. I am learning to do AI-1 interface.

    Thank you for your help.

  8. #8

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    Quote Originally Posted by huy View Post
    Thank all of you very much. I am using Power Amp 2 from Proceed. Proceed confirmed non common ground and negative terminal cannot tied together. My SDA set is Pin/Blade and serial number is higher than 14115. I am learning to do AI-1 interface.

    Thank you for your help.
    Huy,

    You can either build one by following DarqueKnight's Instructions like I did here: http://www.polkaudio.com/forums/show...=1#post1714525

    Or you can buy a pre-made Original Polk Audio AI-1 cable (I just happen to have one for sale)

    Sal
    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

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