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  1. #1

    Member Sales Rating: (13)

    Join Date
    Oct 2004
    Central Illinois

    Default Ebay Auction Reference Page

    I've been compiling sporadic Ebay auction results for vintage Polk speakers over the past few months and have put together a page with the results. It's not complete, but provides a good representative sample. I intend to add to it on an ongoing basis.

    However, it's more than simply a list, as I've archived the actual auction pages in PDF format and made them available for viewing (after all, a picture is worth a thousand words, right? :)).

    To protect people's privacy, I have redacted any identifying information about the buyer and the seller in each auction.

    The biggest difficulty I've had is that in many cases, the seller has mis-identified the exact model of Polk speakers, so placing each auction in the correct category is difficult. In many cases, I don't know the exact difference between certain models. If anyone would care to outline the definitive visible differences between the following models, I would be grateful (I'd like to make a "How to tell the models apart" page for the site):
    1. RTA12 vs. RTA12B vs. RTA 12C
    2. Monitor 7 vs. 7A vs. 7B vs. 7C
    3. Monitor 10 vs. 10A vs. 10B vs. 10 Series 2
    4. SDA 2A vs. SDA 2B
    5. SDA 1 vs. SDA 1A (I believe both have horizontally-oriented tweeters)
    6. SDA 1B vs. SDA 1C (both have vertically-oriented tweeters?)

    If this information is in the SDA Compendium, I apologize for asking. My copy is en route and I should have it this week.

    The page isn't meant to be a definitive reference, but rather a way to assist people in determining either what they have or how much the speakers might (and I emphasize *might*) be worth.

    If anyone sees auctions that are clearly in the wrong model category, please let me know. Also, if you have any suggestions as to how to make the page (or the site in general) more useful, feel free to critique.

    Thanks in advance, and here's the URL:

  2. #2

    Member Sales Rating: (20)

    Join Date
    Jan 2004
    7th Circle of Hell - aka DFW


    Wow, really cool of you to go through the process of doing that...looks good.
    Main HT
    Magnepan 1.6QR fronts, POlk R15 surrounds, Pioneer SC-25, Parasound Halo A23, Oppo BDP-105, Panasonic TC-P60ZT60, Sony PS3, Apple TV

    Bedroom System
    Polk Blackstone TL3, Polk PSWi225 Wireless Sub, HK 3490 Integrated, Oppo BDP-103, Sharp Aquos 32" TV, Apple TV

    Office Rig
    27" iMac w/Amarra, AudioQuest Dragonfly 1.2, Focal XS Book, Schiit Valhalla, Cypher Labs Theorem 720, Philips Fidelio X1, Sennheiser HD600, HiFiMan HE-500, B&W P7, LG 47LM7600, Sony PS3, Apple TV

  3. #3

    Member Sales Rating: (1)

    Join Date
    Oct 2004
    Boca Raton, FL


    Nice job. I've been doing something similar for my own use on the SDAs and SRSs, so I'll definately look at yours periodically to see what going prices are.

    Also, as you stated, it's a great reference to see the age and model (a,b,c etc.) differences.
    SDA 2s; HSU STF-2; Yamaha RX-V1
    SDA-CRSs; Polk PSW-303; Rotel RB-960BX; Rotel RSP-960AX;
    LSi 7s; Infinity PS8; Rotel RB-980BX; Rotel RSP-980
    Mirage Nanosat 5.1; Yamaha RX-V2300
    Monitor 5s, 5 jrs, & 4s

  4. #4

    Member Sales Rating: (1)

    Join Date
    Dec 2003
    Sooner Country

    Default Alot of work there!!

    Thanks for hosting such a link!

    I'm sure that those in the know will help with any ID needed. It will really help all those searching for that next great deal on their favorite model!

    Very thoughtful, and appreciated!
    Optoma HD25 LV on 80" DIY Screen
    Anthem MRX 300 Receiver
    Pioneer Elite DV45A
    Polk CS350LS
    Polk SDA1C
    Polk FX300
    Polk RT55
    Dual EBS Adire Shiva 320watt tuned to 17hz
    ICs-DIY Twisted Prs
    Speaker-Raymond Cable

    2 Channel
    Ariston RD40 w/ Grado Cart
    SACD/CD Marantz 8260
    Soundstream/Krell DAC1
    Audio Mirror PP1
    Odyssey Stratos
    ADS L-1230
    ICs-DIY Twisted
    Speaker-Raymond Cable

  5. #5

    Member Sales Rating: (1)

    Join Date
    Jan 2003


    Cool link and thanks for putting that together.

    Definitely a "bookmark for favorites" in my browser.


  6. #6

    Member Sales Rating: (1)

    Join Date
    Jun 2003
    Southeastern Michigan


    Very cool. Excellent contribution.

    Two Channel Setup:

    Speakers: Wharfedale Opus 2-3
    Integrated Amp: Jolida JD1502
    DAC: Arcam irDac
    Source: iMac
    Remote Control: iPad Mini

    3.2 Home Theater Setup:

    Fronts: Polk LSiM 703s
    Center: Polk LSiM 703
    Subs: SVS PB 12 NSD X 2
    AVR: Yamaha Aventage RX-A2030
    Blu Ray: Sony BDP-S790
    TV Source: DirecTV Genie

  7. #7

    Member Sales Rating: (58)

    Join Date
    Feb 2003
    6 Underground


    The SDA information will be covered in the Compendium.

    The Monitor and RTA series are all mixed up to be exact but this is my understanding.
    Basically the first line, RTA & Monitor models had the Peerless(e.g. Mon7/10), begat the SL1000(Mon7A/10A/RTA12/RTA12B), begat the SL2000(e.g. Mon10B/RTA12C), begat the SL2500(e.g. Mon10 SII).

    Keep in mind that I had a pair of RTA12C's which had an SL1000 installed, and matched schematics, not common....these lines vary quite a bit. These lines were built from what was in the bin or shelf at that time. I have seen multiple variations of the same speaker.

    Basically, look for the Peerless. The others should be replaced with the new Polk replacement upon receipt of said speaker.

  8. #8

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Argyle, NY


    Excellent polksda,

    You went through a hell of a lot of work. I put your link in my favorites. Thanks:-)

  9. #9

    Member Sales Rating: (6)

    Join Date
    Jul 2001
    Bay area, California

    Default Just a bumpin.... keep this excellant thread handy.

    "I'm sure it's better than it sounds."

    Mark Twains' response, when asked what he
    thought of Wagners music.

  10. #10

    Member Sales Rating: (1)

    Join Date
    Jul 2001


    Excellent. Great job! Goes in my favorites too.
    polkaudio speakers: SDA-SRS-2.3 (modified) SDA-2B SDA-CRS+ RT3000p CS400i LF-14 Monitor 7B

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