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  1. #31

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    Quote Originally Posted by heiney9 View Post
    There are 2A's that have side by side tweeters. But many 2A's are single tweets. If you have a copy of Darqueknights SDA Compendium you will clearly see 2A's with 2 tweets. Refer to pp 7-8 in the compendium. After 1986 (approx) the 2A's were upgraded to use a single tweet. Both models (single and double tweeter) are considered 3rd generation.

    But thanks for trying to set the record straight

    But you are correct most 2A's are single tweeter. I wrongly assumed Mr. Bubbles had 2 tweets. It's Polk and those damn transitional models

    H9
    I don't have the SDA Compendium, just the Handbook
    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

  2. #32

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    Quote Originally Posted by heiney9 View Post
    There are 2A's that have side by side tweeters.
    I can find no evidence of this. My downloaded copy of The Handbook specifically states that 2As have a single tweeter, confirmed by the list of drivers which shows only one tweeter.

    Can you list your source for 2As with side-by-side tweeters? If not, I think we can put this to bed.
    Last edited by Schurkey; 03-23-2013 at 03:37 PM.

  3. #33

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    My list of drivers clearly states 2 - sl2000 tweets for the 2A. The sentence on page 7 is a bit confusing. After reading the paragraph over a couple times it does seem to indicate a single tweeter. My copy must have a typo when it lists the drivers for the 2A's, which was subsequently corrected in the dl version.

    So yes, lets' put this to bed because who cares, if he has a single tweeter, then he has a single tweeter. I do know of 2A's which were early runs having 2 tweeters, perhaps they were mis-identified. We ALL know Polk and transitional models can be hard to classify. That's the best evidence you're going to get, unless it comes from Communist China.

    H9
    "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!

  4. #34

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    Name:  Polk SDA 2A.jpg (2).jpg
Views: 244
Size:  490.9 KB

    Here is a photo of the 3rd generation driver list from the Final SDA Compendium.
    "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!

  5. #35

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    Quote Originally Posted by heiney9 View Post

    The third paragraph of you post is incorrect as to how the SDA works in multiple driver SDA's. You can search for the proper explanation as I and others have posted about it before.

    H9
    Can you please point me to where I can find this information you mention here? I have never been too good with the search function here. If you can just direct me to links of some of the information. I have always been under the understanding that the sda works the same in all vintage sda models regardless of # of dimensional drivers, and my studies of the schematics have verified this idea. If this is incorrect I would like to understand how and why and learn more about the subject that I may not already understand.

    So far my understanding is that the dimensional drivers play a signal that is equal to the Left minus Right (or r-l) signal. Essentially only those portions of the signal that is different between the left and right channels. I have understood this principal to be the same in all models with the only differences being the # of drivers (of which all play the same signal in the dimensional circuit) and the wiring of this circuit in TL-able models vs earlier versions. As mentioned earlier, I do understand the progressive point source design in the multi tweeter models, but this is not associated with the dimensional circuits. I would like to learn more about this if I have been incorrect in my understanding.

    Thanks again.

  6. #36

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    Quote Originally Posted by heiney9 View Post
    Attachment 83156

    Here is a photo of the 3rd generation driver list from the Final SDA Compendium.
    And here's a photo of the 3rd generation from my downloaded handbook. It appears we're both right Heiney9 Name:  handbook.jpg
Views: 193
Size:  284.5 KB
    Last edited by westmassguy; 03-23-2013 at 05:01 PM.
    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

  7. #37

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    Quote Originally Posted by heiney9 View Post
    Attachment 83156

    Here is a photo of the 3rd generation driver list from the Final SDA Compendium.
    I have never seen that information until now. All 2A's i have seen or heard of were the single tweeter variety. i would love to see one of the compendiums some time. The different 2A models are not listed in the transitional list in the stickey. But I have also seen other oddballs pop up that had no other background info to describe them either. There were a lot of prototypes and transnationals back then. Though I have never heard any of the models with dimensional tweets I don't believe I would enjoy them. Similar to previously mentioned reasons along with the terrible lobing that must accompany those as well. My ears don't even tend to like the Monitor 10's and such with the side by side mids running the same signal.

  8. #38

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    is there somewhere I may be able to download the information from the sources pictured from you two guys?

  9. #39

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    Quote Originally Posted by Mr. Bubbles View Post
    is there somewhere I may be able to download the information from the sources pictured from you two guys?
    http://vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf
    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

  10. #40

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    I think Polkieman may have posted a link to one of those in another thread but it doesn't appear to be the one H-9 has. Where may I find that one, and is the link to the one in the other thread the same as the one Westmassguy has here? here is the link...

    http://vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf

  11. #41

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    Quote Originally Posted by Mr. Bubbles View Post
    I think Polkieman may have posted a link to one of those in another thread but it doesn't appear to be the one H-9 has. Where may I find that one, and is the link to the one in the other thread the same as the one Westmassguy has here? here is the link...

    http://vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf
    I believe Heiney9 has the original, printed, bound version.
    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

  12. #42

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    Quote Originally Posted by westmassguy View Post
    I believe Heiney9 has the original, printed, bound version.
    Which is now out of print.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  13. #43

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    I think that everyone here tends to lose sight of the fact that EVERY SDA model, when it was introduced and offered for sale to the audio public.........was the Cat's A$$ at that moment in time, and the sound was what they wanted it to be ! I'm pretty sure that without the benefit of a hindsight view, any of the SDA models would be regarded as great sounding speakers, absent any others for purposes of comparison. I personally think that the sound/effect from stock 1As is great and I actually wish that my SRS2s sounded a little more like the 1As in the dimensional department. Name:  face20.gif
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  14. #44

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    He should go make a pdf of it so we can all enjoy it

    I believe Heiney9 has the original, printed, bound version.
    Quote Originally Posted by nspindel View Post
    Which is now out of print.

  15. #45

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    Out of print means out of print, afraid you're out of luck. H9 has it because he paid for it......
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.

  16. #46

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    Quote Originally Posted by PolkieMan View Post
    He should go make a pdf of it so we can all enjoy it

    I believe Heiney9 has the original, printed, bound version.
    It also has errors which have been corrected with the PDF Handbook
    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

  17. #47

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    Well then, I am quite happy with the PDF Handbook, good stuff, printed out, sheet protected and in a binder

    Quote Originally Posted by westmassguy View Post
    It also has errors which have been corrected with the PDF Handbook

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