Which SDA's are these?

chandler9a
chandler9a Posts: 878
edited April 2010 in Vintage Speakers
polk SDA 1

Do you guys think these are SDA 1B's or 1C's?

If they are 1C's I will be getting in my car.
Post edited by chandler9a on
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  • chandler9a
    chandler9a Posts: 878
    edited April 2010
    They seem to be 1B's but if any of you think otherwise let me know.

    thanks
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited April 2010
    Definitely 1B's.

    1C's had cloth sides, and wooden end caps. These are all wood cabinets...

    Definitely 1B's.

    They're probably worth $350...I'd talk him down to $300 though. The 1B's can be modified to use the RD0-198's too.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • chandler9a
    chandler9a Posts: 878
    edited April 2010
    Thanks Curt, I thought so.

    I would buy them but I really don't need them right now.

    I didn't realize they could be modified to use the RDO-198's

    Aaron
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  • heiney9
    heiney9 Posts: 25,217
    edited April 2010
    1B's for sure.
    "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!
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited April 2010
    chandler9a wrote: »
    Thanks Curt, I thought so.

    I would buy them but I really don't need them right now.

    I didn't realize they could be modified to use the RDO-198's

    Aaron


    You'd have to search around for the specifics, but I know there are at least 1-2 people on here that have TL'd 1B's.


    This is on advantage(debatable, obviously) that the 1B's have over the 1C's. The consensus is generally that the 1C's are a much better sounding overall speaker. The 1C's can't be TL'd though.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited April 2010
    comfortablycurt wrote: »
    You'd have to search around for the specifics, but I know there are at least 1-2 people on here that have TL'd 1B's.


    This is on advantage(debatable, obviously) that the 1B's have over the 1C's. The consensus is generally that the 1C's are a much better sounding overall speaker. The 1C's can't be TL'd though.

    http://www.polkaudio.com/forums/showthread.php?t=40577

    Curt is this the upgrade you are referring to? I believe the above mod is for 2Bs as well as the pin/blade CRS+.
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited April 2010
    hearingimpared wrote: »
    http://www.polkaudio.com/forums/showthread.php?t=40577

    Curt is this the upgrade you are referring to? I believe the above mod is for 2Bs as well as the pin/blade CRS+.

    No.

    I forget who it is...but there are a couple people around who have TL'd 1B's. I believe the mod is essentially the same as TL'ing a 2B. The 2A's are also capable of being TL'd...mine are going to be getting TL'd a little later this year.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • Schurkey
    Schurkey Posts: 2,104
    edited April 2010
    Easy enough to "TL" a 1B. Change the crossover so that instead of the 4.4uf cap, there's 5.8uf; and buy four RDO198s.

    I went half-way: changed the capacitance, and bought TWO 198s. The two go in the upper position.

    This was pioneered by Inspiredsports, here:
    http://www.polkaudio.com/forums/showthread.php?t=74946
    It's a long read...

    My 1Bs are set up to use the AI-1 as well as the stock interconnect. (either, not both at the same time) The single-conductor SDA interconnect doesn't sound as good as the stock wiring, though. The SDA signal seems to be weaker.
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  • restanim
    restanim Posts: 227
    edited April 2010
    Too all.
    I live in Cicero NY. If anybody wants me to give them a listen and a visual inspection, let me know.

    Mike
    polkaudio

    Currently Own:
    RTA-11T Light Oak, Aug/2011 to present
    SDA-CRS+ Aug/2011 to present
    RTA-11T Black, Dec/2013 to present

    Previously Owned:
    SDA-SRS 2.3 May/1990 to June/1991
    SRS 1.2TL June/1991 to May/1995
    SDA-1C Aug/2005 to Dec/2011
    SRS 1.2TL Sept/2009 to Sept/2015
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  • chandler9a
    chandler9a Posts: 878
    edited April 2010
    restanim wrote: »
    Too all.
    I live in Cicero NY. If anybody wants me to give them a listen and a visual inspection, let me know.

    Mike

    Thanks for the offer! I just may have you do that if he will go down in price.
    I can't imagine spending $350 if I were going to do all the mods, which I would.

    Aaron
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited April 2010
    Schurkey wrote: »
    Easy enough to "TL" a 1B. Change the crossover so that instead of the 4.4uf cap, there's 5.8uf; and buy four RDO198s.

    I went half-way: changed the capacitance, and bought TWO 198s. The two go in the upper position.

    This was pioneered by Inspiredsports, here:
    http://www.polkaudio.com/forums/showthread.php?t=74946
    It's a long read...

    My 1Bs are set up to use the AI-1 as well as the stock interconnect. (either, not both at the same time) The single-conductor SDA interconnect doesn't sound as good as the stock wiring, though. The SDA signal seems to be weaker.



    Joe, that's what I was referring to.^^^^



    It's been determined that essentially the same mod could be performed on the 2A's. To the best of my knowledge, nobody has done it yet though. For the benefit of all future SDA tweakers, I think I'm going to guinea pig my 2A's for this experiment.:) Should be fun. They're getting full XO mods first, and keeping the 194's. Then I'll be further modding the XO's, and adding the 198's after I get a good feel for how they sound modded, with the 194's.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited April 2010
    comfortablycurt wrote: »
    Joe, that's what I was referring to.^^^^

    Gotcha!:)
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