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  1. #1

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    Default Just got my first big pair of vintage Polks!

    Hey all, I'm new here but not to vintage audio, I am quite active on the forum Audiokarma, but a few guys recommended I come here for a recent acquisition I made.

    I just got from a very nice gentleman, a pair of Polk SDA-1C's! He was the second owner and they came with the original boxes and packing material. Apparently the interconnect cable was also included according to the original owner, but upon opening the box it wasn't there. The seller said he'll try to track it down for me as he knows the guy he bought them from, he thinks he forgot to put it in the box. They spent most of their life in the boxes, as the original owner worked for the Pentagon and was shipped around to many places. The boxes have a seal label declaring them to be the property of a US Government personnel, I found that really neat. The price, while not a steal, was very fair for both the seller and me, and I was able to trade him something he liked to go towards part of the total price, so it worked out well.

    Speakers are the black studio version and are near mint, the cabs have a few very small dings that are hardly worth mentioning. Grilles are in perfect condition, as are the drivers. They work perfectly, I was utterly amazed by the sound. My jaw actually dropped on the floor once I got them going with my recapped/restored Pioneer SX-1980. Unbelievable imaging and soundstage, with a clarity I didn't know was possible (I haven't been able to listen to many good speakers, can't you tell? ).

    I am very, very pleased with them, they are going to become my main system speakers and I plan on doing a recap of the crossovers soon. I was curious, for those of you who have heard them and messed with them, what is your opinion of them compared to others and can you recommend anything that might improve them other then a recap of the crossovers?

  2. #2

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    Nice! Welcome to the club.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade)
    Parasound: C/PT-600, HCA-800II; Denon: DVD-2910, DRM-800A; Monster HTS3600-MKII, Grado SR-225i

    HT:
    Denon AVR-888, Polk: RM7, PSW10, Marantz UD5005, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, DRA-825R, DCD-660, DRM-700A, DRR-780; Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S8, Monitor 5A, TSi100; Pioneer CT-6R, PL-530; Onkyo CP-1046F; Ortofon OM5E, Marantz PM5004, CD5004

  3. #3

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    Welcome to the forum!!! Btw, if no pictures, then it never happened!
    AVR - Onkyo NR809
    500gb HD for MP3 and FLAC files
    Amp - Parasound 2250 - FOR SALE BTW!! PM me if interested!
    Mains - Polk RTi12 towers
    Center - CSi5
    Surround - FXiA6's
    Sub - psw505
    Movies and games - PS3
    TV - Toshiba 52" HD

    Every vehicle has one good nuetral drop in it

  4. #4

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    Default

    Quote Originally Posted by snake1
    Welcome to the forum!!! Btw, if no pictures, then it never happened!
    I should have known that was coming.

    Here are pics, and a video! (Note: please excuse the hideous carpet, it's been here since I moved in and it's one of those projects I haven't quite gotten to yet.)

    Without grilles

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    With grilles

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    Close up of the speaker

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    Top of one of the boxes

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    Bottom of it

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    The label, pretty interesting

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    A video of them working, the mic can't possibly capture what they sound like in person, but it does a pretty good job.



    In case you were wondering why those two amps are opened up on the floor in the photos, I repair and restore vintage amps and receivers and those were two I had recently got done with and were burning them in. A Sansui AU-20000 is what is hooked up in those photos and a Pioneer SX-850 is the other one.

  5. #5

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    Look at the "stickys" in the vintage area, lot's of information on doing mods to these. Welcome to the club
    Home Theater
    Onkyo PR-SC5508 Sharp LC-70LE847U
    Emotiva XPA-5 Emotiva XPA-2 Emotiva UPA-2
    Front RTi-A9 Wide RTi-A7 Center CSi-A6 Surround FXi-A6 Rear RTi-A3 Sub 2x PSW505
    Sony BDP-S790 Dishnetwork Hopper/Joey Logitech Harmony One Apple TV
    Two Channel
    Oppo 105D BAT VK-500 w/BatPack SDA SRS 2.3 Dreadnought Squeezebox Touch Apple TV

  6. #6

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    Congrats
    And FYI thats one of the best camera audio replay I have heard on the forum yet

    Welcome to the club
    Home Theater:Samsung8000-55LED,Pioneer SC35, Pioneer DV-79AVi, Sunfire TGA7201, LSi25, LCi RTSc, LC80i
    2chnl system:Melody 101 tube pre, Pass XA30.5 amp, Usher MD2 speakers, W4S Dac, MG Audio Planus2 speaker cables
    Office rig: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures

  7. #7

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    hhgfaa is Household Goods Forwarders Association of America. They are global forwarders/transporters, so those speakers either went abroad or were purchased abroad.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  8. #8

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  9. #9

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  10. #10

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    Welcome to the forum, and the "Rabbit Hole". If you think they sound good now, wait till you get the interconnect cable installed. BTW, you can make a temporary cable using a single 12-14 gauge speaker wire, with rca plugs on the ends. Cut or break off the outer ground shield, so that only the center pin is left. The 1Cs are 4th generation SDAs, and only the pin carries the signal between the speakers. As other have said, there are many, many upgrades that can be done, not just the crossover re-cap.
    That Pioneer Receiver is drool worthy for sure, and should provide enough power, depending on your listening tastes, and the size of the listening room.
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom Built http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat & Hurricane Nuts.
    Pioneer Elite VSX-72TXV, Carver PM-350

    "So is there any tread left on those tires or is it just like throwing a hotdog down a hallway?"

    www.dhsspeakerservice.com

  11. #11

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    Wow, that ping-pong-ball sound at 2:15 is amazingly lifelike!!

    Just kidding...congrats on the new speakers.

    Nice gear and welcome to the club.
    2-channel
    Sources: Pro-ject 2.9 wood Grado Gold cartridge; Squeezebox Duet; Oppo BDP-83
    Amps: PS Audio GCPH; PS Audio DLIII(Cullen mods IV); Parasound Halo P3; B & K Reference 200.2
    Speakers: Polk - LSi15's(db sub mod)


    HT
    Amps: Sony - STR-DG1000; Outlaw 200 Mono; Speakers: Polk - CS2, Monitor 70's, RC80i's; Video: Optoma HD20; FAVI HD-100


    Man Cave (In Progress)
    Sources: Sony PS-LX410, Denon 3910; Amps: Dared sl2000a, HK 3490, Simaudio Moon LP3; Speakers: Polk - SDA 2A's

  12. #12

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    Welcome and congrats on the new to you speakers. Nice looking system you have there!!
    Sunfire Theater Grand IV
    Sunfire Cinema Grand Signature
    SRS 2.1TL
    SDA 2BTL's
    CSiA6
    FXiA4
    FXiA6
    SDA 2A's
    Monitor 10A's

    http://www.douglasconnection.com

  13. #13

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    You'll love those1Cs -- especially after mods!
    Congrats & welcome!

  14. #14

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    Welcome to the forum and congrats on your new purchase!

    As was mentioned above, you'll need the interconnect cable installed to really hear the imaging those are capable of. Also, They should be 6-8 feet apart with, ideally (not always possible in the real world) nothing between them.

    In my setup, I have a rack between them, but the the rack is 8" or so behind the front plane of the speaks.

    Spend some time with them before recapping - you'll have a point of comparison and the improvement will blow you away!
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer

  15. #15

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    Welcome, great speakers I have a set modded just like that.

  16. #16

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    Congrats welcome to Club Polk. Wait till you hear them with the interconnect cable.

  17. #17

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    Welcome also..VERY NICE..look & sound awesome..enjoy your new to you speakers....randy

  18. #18

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    Congrats and Welcome to Club Polk!


    Update the crossovers, resistors, caps and coils.
    New RDO198-1 Tweeters
    Dynamat the speaker cages.
    Update the binding posts
    Updated AI-1 Darque Knight Cable if you plan on using mono amps.
    Spikes.
    There are alot of upgrades you can do to these.

    They are Great speakers. I've owned a couple pairs over the years.

  19. #19

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    they look excellent! congrats

  20. #20

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    Quote Originally Posted by hochpt21
    Wow, that ping-pong-ball sound at 2:15 is amazingly lifelike!!
    I got a good chuckle from this. My youngest brother dropped one in the room next to me, but with the camera mic being so sensitive, it picked it up very well!

    Thank you for all the kind comments and suggestions guys, and most of all the amazing welcome! To reply to a few of the suggestions, I did get the speakers about a foot further apart since the video and photos were taken, but that's all I can do unless I do a major room reshuffle, which sadly would be very difficult at this point. I do plan on making a cable if the seller can't track down the original, he's already said he'll refund me some of the money I paid if he can't get it. I'll definitely look into those other upgrades as well.

  21. #21

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    Half the "magic" is in that inter-connect cable. Get one STAT . . . THEN, you'll be amazed . . .

    Welcome to CP!

    G
    Mains Polk SDA SRS 2 (modified) Sub M&K MX-100
    Power Pass Aleph 30 & Adcom GFA 5802
    Power Conditioner Furman Elite 15 PF i
    Rears Definitive Technology BP-2
    Center Definitive Technology C-1
    Pre/Pro Integra DHC 40.1
    LCD Samsung LN46B750
    Source Oppo 105
    Wires MIT S3.3

  22. #22

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    Welcome to CP. If you ever need to replace any of the parts, or speaks tell them you are a member of Club Polk and get a discount.

  23. #23

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    Welcome. I have the same black studio version 1c's. They were my first SDA speakers which led to a serious SDA addiction. Great speakers that are hard to beat in a medium sized room. Do yourself a favor and change those SL2000 tweets to the RDO 194's. You will be glad you did and will hear an immediate improvement. Good luck.
    Polk HT system 1: LSIC, LSI25 mains, LSI F/X rears, Lsi F/X rear centers, Lsi 7's presence speakers,
    Yamaha RX-V2500 System, Sunfire grand 5 channel, Carver A753 3 channel amp.

    Polk HT system 2: ,Polk CS1000 center, Polk cs400rear center, Polk RT800 mains stacked with RT55's, Polk F/X 1000 rears running on a Yamaha RX-V2200

    Polk Speaker collection: SDA SRS 1.2tl x 2, SRT system, SDA SRS 2 P/B, SDA 2A, SDA 1C Studio, SDA CRS+, Monitor 12 series 2, 7B & 4, SRS 3.1tl, RTA 15tl

  24. #24

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    Your only listening to half the speaker.
    Welcome!
    Make you an interconnect cable.
    Take a RCA cable and break off the outer shell so as only the center pin is left.
    Since these speakers are pin/blade almost all 1C are only the pin is active the blade was for support.
    Sda Handbook.
    Download it here may take a minute or two
    vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf‎

  25. #25

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    welcome to the forum! look like super nice speakers, but you now need to upgrade that tv!
    Receiver: Denon 1912
    Speakers:
    Fronts: Polk Audio Monitor 70s (x2)
    Rears: Polk Audio Monitor 50 (x2)
    Center: Polk Audio Monitor 70
    KLH Sub GFX-550

  26. #26

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    Quote Originally Posted by PolkieMan View Post
    Your only listening to half the speaker.
    Somewhat true for early SDA speakers, not so much for the later units. The only thing he's missing is the SDA effect; all the drivers work with a stereo signal.
    Quote Originally Posted by PolkieMan View Post
    Make you an interconnect cable.
    Take a RCA cable and break off the outer shell so as only the center pin is left.
    Since these speakers are pin/blade almost all 1C are only the pin is active the blade was for support.
    Sda Handbook.
    Download it here may take a minute or two
    vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf‎
    An RCA interconnect cable will have far too much resistance. The center conductor is typically too-small.

    RCA interconnect PLUGS, modified as you suggest--but actually connected to speaker wire will work much better.

  27. #27

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    I'll be using some really nice 14ga high strand OFC wire that I have left over from a speaker wire project, so all I need is some banana plugs and I'll be good. That is if the seller doesn't find the original of course.

  28. #28

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    Quote Originally Posted by repairmatt View Post
    I'll be using some really nice 14ga high strand OFC wire that I have left over from a speaker wire project, so all I need is some banana plugs and I'll be good. That is if the seller doesn't find the original of course.
    Banana Plugs are too large. As I said in reply #10:
    "you can make a temporary cable using a single 12-14 gauge speaker wire, with rca plugs on the ends. Cut or break off the outer ground shield, so that only the center pin is left"
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom Built http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat & Hurricane Nuts.
    Pioneer Elite VSX-72TXV, Carver PM-350

    "So is there any tread left on those tires or is it just like throwing a hotdog down a hallway?"

    www.dhsspeakerservice.com

  29. #29

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    Yea I made this one using Monoprice 12Ga 2 wire CL 2.
    Dremel the outer ring off the Rca Plugs Bananas are too big

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    Last edited by PolkieMan; 05-14-2013 at 03:45 AM.

  30. #30

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    I bet when he does get or make an interconnect he will think he was listening to half of the speaker though.
    Yea your right most RCA cables are like a 28 gauge wire. I first used a video cable with RCAs it was better
    for the short term maybe 20 gauge.


    Quote Originally Posted by Schurkey View Post
    Somewhat true for early SDA speakers, not so much for the later units. The only thing he's missing is the SDA effect; all the drivers work with a stereo signal.

    An RCA interconnect cable will have far too much resistance. The center conductor is typically too-small.

    RCA interconnect PLUGS, modified as you suggest--but actually connected to speaker wire will work much better.

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