how do Polk SDA 1B compare to SDA 2B?

2»

Comments

  • Schurkey
    Schurkey Posts: 2,101
    edited March 2013
    heiney9 wrote: »
    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.
    · Share on FacebookShare on Twitter
  • heiney9
    heiney9 Posts: 25,165
    edited March 2013
    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 Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
    · Share on FacebookShare on Twitter
  • heiney9
    heiney9 Posts: 25,165
    edited March 2013
    Polk SDA 2A.jpg (2).jpg


    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 Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
    · Share on FacebookShare on Twitter
  • Mr. Bubbles
    Mr. Bubbles Posts: 736
    edited March 2013
    heiney9 wrote: »

    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.
    If con is the opposite of pro, is Congress the opposite of Progress?!


    Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium.
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited March 2013
    heiney9 wrote: »
    Polk SDA 2A.jpg (2).jpg


    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
    handbook.jpg
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter
  • Mr. Bubbles
    Mr. Bubbles Posts: 736
    edited March 2013
    heiney9 wrote: »
    Polk SDA 2A.jpg (2).jpg


    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.
    If con is the opposite of pro, is Congress the opposite of Progress?!


    Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium.
    · Share on FacebookShare on Twitter
  • Mr. Bubbles
    Mr. Bubbles Posts: 736
    edited March 2013
    is there somewhere I may be able to download the information from the sources pictured from you two guys?
    If con is the opposite of pro, is Congress the opposite of Progress?!


    Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium.
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited March 2013
    Mr. Bubbles wrote: »
    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 forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter
  • Mr. Bubbles
    Mr. Bubbles Posts: 736
    edited March 2013
    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
    If con is the opposite of pro, is Congress the opposite of Progress?!


    Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium.
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited March 2013
    Mr. Bubbles wrote: »
    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 forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter
  • nspindel
    nspindel Posts: 5,343
    edited March 2013
    westmassguy wrote: »
    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.
    · Share on FacebookShare on Twitter
  • gdb
    gdb Posts: 6,012
    edited March 2013
    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.
    face20.gif
    · Share on FacebookShare on Twitter
  • PolkieMan
    PolkieMan Posts: 2,446
    edited March 2013
    He should go make a pdf of it so we can all enjoy it:cheesygrin:

    I believe Heiney9 has the original, printed, bound version.
    nspindel wrote: »
    Which is now out of print.
    POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
    POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
    PIONEER PL-510A SONY BDP S5100
    POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
    ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1
    · Share on FacebookShare on Twitter
  • nspindel
    nspindel Posts: 5,343
    edited March 2013
    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.
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited March 2013
    PolkieMan wrote: »
    He should go make a pdf of it so we can all enjoy it:cheesygrin:

    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 forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter
  • PolkieMan
    PolkieMan Posts: 2,446
    edited April 2013
    Well then, I am quite happy with the PDF Handbook, good stuff, printed out, sheet protected and in a binder :biggrin:
    westmassguy wrote: »
    It also has errors which have been corrected with the PDF Handbook
    POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
    POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
    PIONEER PL-510A SONY BDP S5100
    POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
    ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1
    · Share on FacebookShare on Twitter