Are These SDA 2Bs ??

gdb
gdb Posts: 6,012
edited April 2009 in Vintage Speakers
I've got some speakers that look like these and have p/b ICs, but I've read that only the ones with the "slab" on the top and bottom are actually true 2B models. Does anyone know if speakers that look like the ones in the link, & with p/b ICs, can be Bs or are they just 2s or 2As. Thanks for any ID help !!:)


http://washingtondc.craigslist.org/doc/ele/1119068390.html
Post edited by gdb on
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  • bluecomet
    bluecomet Posts: 1,118
    edited April 2009
    They are 2B's. They look to be in great shape.
    Polk HT system 1: LSIC, LSI25 mains, LSI F/X rears, Lsi F/X rear centers,
    Yamaha RX-V2500 System, Carver A753 3 channel amp.

    Polk HT system 2: , SRT system with f/x 1,000's rear speakers on 7.1 system currently using Onkyo TX-RZ820 receiver, powered by Sunfire Grand Theater amp

    Polk Speaker collection: SDA SRS 1.2tl x 2, SRT system, SDA SRS 2 P/B, SDA 2A, SDA 1C Studio, SDA CRS+, Monitor 7B & 4, SRS 3.1tl, RTA 15tl, LS90, LSI 9
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  • rmaiers
    rmaiers Posts: 145
    edited April 2009
    I have a line on a set of SDA-2B speakers but I already have a set of RTA-12B and RTA-12C speakers that really sound good.

    Are the SDA-2B speakers considered a better speaker than than the RTA-12s?

    I need to get rid of something if I get the SDA-2Bs.
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  • thsmith
    thsmith Posts: 6,082
    edited April 2009
    I think these belong to Dee (?) who has them posted on the for sale section of CP.

    Yep, here is the link
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
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  • gdb
    gdb Posts: 6,012
    edited April 2009
    OOPS, I just looked at the ones in the CL ad again, mine have an additional/recessed base that the ones in the ad do not. Does that indicate a non-B speaker even if mine are pin/blade type ? I guess that with all of the different versions produced within a model series, the only way to be sure of what I've got is to pull the XOs and teach myself how to post pictures so someone can tell from the pics. I really hope they're 2Bs so I can perform the "TL" upgrade on them as well as applying some real wood veneer to the cases.:confused::) Thanks !!
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  • bluecomet
    bluecomet Posts: 1,118
    edited April 2009
    Go with the SDA 2B's. Drive them with a good amp or vintage monster receiver and you will start to look for more SDA's. It's a sickness and we are the support group. Let us know how you make out.
    Polk HT system 1: LSIC, LSI25 mains, LSI F/X rears, Lsi F/X rear centers,
    Yamaha RX-V2500 System, Carver A753 3 channel amp.

    Polk HT system 2: , SRT system with f/x 1,000's rear speakers on 7.1 system currently using Onkyo TX-RZ820 receiver, powered by Sunfire Grand Theater amp

    Polk Speaker collection: SDA SRS 1.2tl x 2, SRT system, SDA SRS 2 P/B, SDA 2A, SDA 1C Studio, SDA CRS+, Monitor 7B & 4, SRS 3.1tl, RTA 15tl, LS90, LSI 9
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  • jtgranby
    jtgranby Posts: 887
    edited April 2009
    gdb wrote: »
    I've got some speakers that look like these and have p/b ICs, but I've read that only the ones with the "slab" on the top and bottom are actually true 2B models. Does anyone know if speakers that look like the ones in the link, & with p/b ICs, can be Bs or are they just 2s or 2As. Thanks for any ID help !!:)


    http://washingtondc.craigslist.org/doc/ele/1119068390.html

    Not to mess up dee FS listing read Raiffe's post about the difference in the SDA2B models
    http://www.polkaudio.com/forums/showthread.php?postid=306070#post306070

    Jim
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  • gdb
    gdb Posts: 6,012
    edited April 2009
    JT, thanks for the link, I'd already determined that mine were 2Bs in spite of what some other members had stated about them based on the cabinet appearance. I tried a search or two and never got very good results, then I went to the SDA stickies and found the driver list/timeline and determined that my ****umptions were correct for a change ! :D
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  • dee1949
    dee1949 Posts: 1,425
    edited April 2009
    ....Am i MISSING something>>??? Seems like a NO brainer. If it is "PIN & Blade" it is a 2 B.

    Anyone ever heard of a SDA 2 A with "Pin and Blade". Check below: "P&B" = 2B is the RULE
    ...You CAN have a SDA 2b with "B&B" but not the rule.


    1984---SDA 2, two tweeters, two MW6501 drivers per cabinet, blade/blade SDA cable.

    1986---SDA 2A, one tweeter, two MW6510 drivers per cabinet, blade/blade SDA cable.

    March 1987---SDA 2B, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, blade/blade SDA cable.

    October 1987---SDA 2B-revision 1, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, pin/blade SDA cable.

    1989---SDA 2B-revision 2, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, pin/blade SDA cable. Polyswitch is changed.

    And there is a 3/4" sub base if that helps on my Light Oak "Studio" 2 B's
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  • gdb
    gdb Posts: 6,012
    edited April 2009
    DEE, not at all, I posted my findings on your FS thread to counter those that stated that your 2s were As and not Bs, I've been told several times that cabinets like yours and mine are in no way 2Bs. Now,hopefully the subject can be put to rest. I think that it's hard to decipher the older Polks due to the changes and part substitutions made within model runs. If some of the long time veterans here can't be sure.....I certainly don't have chance in Hell ! :) Are you sure you want to sell those nice Bs?? You might regret it later !!!:(
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  • jtgranby
    jtgranby Posts: 887
    edited April 2009
    dee1949 wrote: »
    ....Am i MISSING something>>??? Seems like a NO brainer. If it is "PIN & Blade" it is a 2 B.

    Anyone ever heard of a SDA 2 A with "Pin and Blade". Check below: "P&B" = 2B is the RULE
    ...You CAN have a SDA 2b with "B&B" but not the rule.


    1984---SDA 2, two tweeters, two MW6501 drivers per cabinet, blade/blade SDA cable.

    1986---SDA 2A, one tweeter, two MW6510 drivers per cabinet, blade/blade SDA cable.

    March 1987---SDA 2B, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, blade/blade SDA cable.

    October 1987---SDA 2B-revision 1, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, pin/blade SDA cable.

    1989---SDA 2B-revision 2, one tweeter, one MW6503 stereo driver, and one MW6511 SDA driver per cabinet, pin/blade SDA cable. Polyswitch is changed.

    And there is a 3/4" sub base if that helps on my Light Oak "Studio" 2 B's

    Dee
    You are not missing a thing I just did not want to dick up your for sale thread. Pulling the drivers is one sure way to know. But you are right if they are pin blade it is a 2b. Good luck with your sale.

    Jim
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  • dee1949
    dee1949 Posts: 1,425
    edited April 2009
    Ciao Guys

    ...I really DON"T care about the sell. I can't believe on this forum ....that there is not a conscientious. Not one other pair amongst you, in light OAK Studio......PIN and Blade. Must be a Miracle of Nature. Worth 2x the price.
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  • Conradicles
    Conradicles Posts: 6,133
    edited April 2009
    dee1949 wrote: »
    Ciao Guys

    ...I really DON"T care about the sell. I can't believe on this forum ....that there is not a conscientious. Not one other pair amongst you, in light OAK Studio......PIN and Blade. Must be a Miracle of Nature. Worth 2x the price.

    Dee, everybody ruined your "for sale" thread, I'll ruin this one.



    NOOBS RULE!!!:p:p:p
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  • rdupre
    rdupre Posts: 36
    edited April 2009
    Yes.....the SDA's are very addicting.
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