SDA-1C in my living room...

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Comments

  • nspindel
    nspindel Posts: 5,343
    edited January 2009
    Looks like Polk got a lot of mileage out of that board! :rolleyes:
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • heiney9
    heiney9 Posts: 25,165
    edited January 2009
    Not sure if this helps but 1C's depending on when they were manufactured come with 1 of 2 types of board.

    1) split between 2 x-over boards

    2) a single x-over board.

    IIRC, the later model 1C's come with the single board x-overs.

    Again not sure if this info helps

    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!
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  • nspindel
    nspindel Posts: 5,343
    edited January 2009
    My 1C's have the split board:

    IMG_7891.jpg

    IMG_7893.jpg
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • Face
    Face Posts: 14,340
    edited January 2009
    nspindel wrote: »
    Looks like Polk got a lot of mileage out of that board! :rolleyes:
    For all we know, it may not have been Polk's doing.

    I would crack open both speakers to see if the crossovers are the same in both speakers. Also, get the part numbers off all the woofers. Oh, and it looks like they may be 4 ohms after all.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • nspindel
    nspindel Posts: 5,343
    edited January 2009
    Face wrote: »
    For all we know, it may not have been Polk's doing.

    Precisely what I was just thinking.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • heiney9
    heiney9 Posts: 25,165
    edited January 2009
    1C's are all 6 ohm nominal as far as I know. That was one of the changes between the 1B and 1C. But anything is possible with Polk as they always likes to use up old stock even in new models ;).

    The 6 ohm is because of the driver compliment. The later SRS2's are also 6 ohms as they use the same drivers as the 1C

    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!
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  • nooshinjohn
    nooshinjohn Posts: 25,420
    edited January 2009
    they share the same x-over design in each speaker, all woofers/sda channels match the replacement guide in the forum and all inspection dates are the same on all drivers. in fact my passive units were born today! HAPPY B_DAY!!! lol.

    the only thing i can say is that with exception to the binding posts, which I modded last nite, these are untouched internally. I am going to recondition their appearance first, then upgrade the x-overs and tweeters. that said, all i can say is WOW. I found a vintage 1990 alpine reference cd used to demo the performance of car audio and i am amazed at how easy it is to hear the breath of a flutist or the pages turn on sheet music when listening in stereo. i even get the effect of surround sound from just two speakers!
    It has been more than 10 years since I had sda's in my home. my last were sda-srs 1.2tl's which the ex got in a divorce, then kindly had taken to the curb when she no longer had room for them.:eek:..:eek:.. it feels good to have decent sound again:D
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • nspindel
    nspindel Posts: 5,343
    edited January 2009
    nooshinjohn wrote: »
    my last were sda-srs 1.2tl's which the ex got in a divorce, then kindly had taken to the curb when she no longer had room for them.:eek:..:eek:..

    Stories like this just tear at my heart...
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • casualinfoguy
    casualinfoguy Posts: 10
    edited March 2011
    Do you know where I can get replacement drivers for the SDA SRS 1.2TL -- everything except the Passive Radiator??
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  • treitz3
    treitz3 Posts: 19,033
    edited March 2011
    Polk Audio would be my guess. Try giving them a call. Don't e-mail them, call. Here's the number.

    866-764-1801
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • dpowell
    dpowell Posts: 3,068
    edited April 2011
    The XO upgrades are a MUST. RDO tweeters. Also consider spikes or granite slabs (what I did because I had them on hand) to improve bass response. Haven't done the rings yet but they are here waiting for me to have a free day. I run the 1C's off the 4ohm outputs of my amp. Definitely go with a tube amp down the road if you want to bring out the soul in them.
    ____________________________________________________________

    polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
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  • thsmith
    thsmith Posts: 6,082
    edited April 2011
    ^^^^ A man that knows what he is talking about. Gets those rings on, as far as must goes put it right behind xo and rdo.
    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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