First set of SDA's.... How'd I do?

Just picked these up for $300 at an estate sale... So far they seem to be in working order and barely a scratch on them. No frozen drivers and seem to be air tight. My Rotel 1095 and some Tchaikovsky had me wanting to jump behind my chair lol. I believe they are first gen SRS.

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Comments

  • nooshinjohnnooshinjohn Posts: 19,970
    Great score! Plenty of information here about them and how to restore them. Let me be the first to say welcome aboard.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Goldfinger Diamond v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X0.2 three chassis preamp, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds.

    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

    “If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.”
  • verbverb Posts: 5,678
    Wow! That’s the mother of all smoking deals! I got a set for $1000 a while back. Lots of great upgrades to be had! Well done sir! :smile:
    Basement: Polk SDA SRS, Cary SLP-05 Pre, Enlightened Audio Designs CD Transport, Northstar Designs Intenso DAC, Silnote Morpheus Ref2 Digital Cable, Marantz SA-14 SACD, McIntosh MC300 Amp, Furman 15PFi Power Conditioner, Pangea Power Cables, Wireworld Oasis 8 RCA IC's, MIT Shotgun S3 IC's, MIT Terminator2 Bi-Wire speaker cables
    Office: PC, Marantz CD-1, Marantz AMP-1, Denon UDR-F10 Cassette, Acoustic Technologies Classic Speakers, SVS SB12 Plus Subwoofer, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable
    Spare Room: , Antique Sound Labs Wave AV-8 Monoblocks, Tisbury Mini Passive Pre, Tjoeb 99 tube CD player (modified Marantz CD-38), AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Furman M8-LX Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
    Spares VTL 2.5 Pre, EAR 834L Pre, Rotel RC1580 Pre, Conrad Johnson MF2300A Amp, Carver TFM35x Amp, (2) Dayens Ampino Integrated, (2) SDA 1C's, Monitor 10's, Monitor 5Jr's, Polk TSi200's, Rega RP1 TT, Project BoxE Bluetooth Streamer, Bottlehead SEX 2.1 Integrated Amp
  • xschopxschop Posts: 1,046
    Essssss....core!
  • verbverb Posts: 5,678
    Ok.... Dark side of the Moon at reference level is as close to pure Bliss that I've ever heard.....

    Nice! Did you get the interconnect cable as well?
    Basement: Polk SDA SRS, Cary SLP-05 Pre, Enlightened Audio Designs CD Transport, Northstar Designs Intenso DAC, Silnote Morpheus Ref2 Digital Cable, Marantz SA-14 SACD, McIntosh MC300 Amp, Furman 15PFi Power Conditioner, Pangea Power Cables, Wireworld Oasis 8 RCA IC's, MIT Shotgun S3 IC's, MIT Terminator2 Bi-Wire speaker cables
    Office: PC, Marantz CD-1, Marantz AMP-1, Denon UDR-F10 Cassette, Acoustic Technologies Classic Speakers, SVS SB12 Plus Subwoofer, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable
    Spare Room: , Antique Sound Labs Wave AV-8 Monoblocks, Tisbury Mini Passive Pre, Tjoeb 99 tube CD player (modified Marantz CD-38), AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Furman M8-LX Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
    Spares VTL 2.5 Pre, EAR 834L Pre, Rotel RC1580 Pre, Conrad Johnson MF2300A Amp, Carver TFM35x Amp, (2) Dayens Ampino Integrated, (2) SDA 1C's, Monitor 10's, Monitor 5Jr's, Polk TSi200's, Rega RP1 TT, Project BoxE Bluetooth Streamer, Bottlehead SEX 2.1 Integrated Amp
  • Tony MTony M Posts: 7,608
    WOW...300... :D B)

    I hope you have the interconnecting cable hooked up. If not, you haven't heard nothin yet.

    You lucky dog you.

    Welcome to the machine!
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • It was an estate sale and the cable was nowhere to be found but I fabricated a temporary one. Did my research to make sure I connected the correct blades to the correct blades first though.
  • Tony MTony M Posts: 7,608
    edited March 24
    Good going. ;)

    So they are blade / blade?
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • Tony M wrote: »
    Good going. ;)

    So they are blade / blade?

    Yes there are two blades on each speaker. One a little smaller than the other.
  • ddogddog Posts: 128
    Man...you totally scored...
    All hail the king :o
  • monepolkmonepolk Posts: 949
    Great deal.
  • michaeljhsda2michaeljhsda2 Posts: 1,879
    Great deal! congrats
    SDA SRS 1.2TL's w/ RD0198-1's, Sonicap, Mills
    AI-1 Dreadnought
    SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
    SDA 1C's stock
    SDA 2B TL's w/RD0198-1's
    SDA 2's (side by side tweeters) stock
    Yaqin MC-30L integrated tube amp
    Yaqin MS-20L integrated tube amp
  • CH46ECH46E Posts: 951
    Sweetness! Welcome!
  • xschopxschop Posts: 1,046
    What I was originally thinking....

  • JPeteJPete Posts: 290
    Great score. Awesome speakers
    Lexicon RT-10, Parasound P5, McCormack DNA 0.5, Polk SDA CRS+, SVS Sub
    Schiit Modi, Luminous Audio Axiom II, McCormack DNA-1, Digital Phase AP 2
    Marantz AV7701, Emotiva XPA-5, Paradigm 11se Mkii, DCM Time Windows, NHT 2C, SVS Sub

    Spares - Kenwood C1 Pre, NAD 2200PE, Polk Monitor 10B, Polk Model 11, other odds and ends
  • audioluvraudioluvr Posts: 1,048
    Welcome you lucky bastage! Probably one of the greatest speakers ever made right there!
    Home System:
    SDA 1C's - Full mod with the help by Dave...
    800 Va Dreadnought- Speaker Interconnect
    WireWorld Mini-Eclipse 7 speaker cables
    Cambridge Audio Azur 851N - DAC/Streamer
    B&K Reference 50 Pre/Pro
    B&K M200 Sonata Monoblocks
    BLE-Design 16mm Power Cables
    Denon DVD 2900
    Sangean HD FM Tuner

    Barn system:
    SDA SRS 2.3's Full mod done by myself
    Carver C-1 pre
    Carver M1.5t
    BluDenso - Bluetooth receiver/DAC
  • Alright after listening last night I've decided I need to upgrade a few things. I'm getting a lot of hum from them when no audio is playing and need to either source an original interconnect cable or build a permanent replacement. I may replace the tweeters with the RD-0194's but not sure yet. As for the hum... Where should I start my repair adventure? Resolder wire connections in the crossovers or go ahead and start replacing components?
  • JPeteJPete Posts: 290
    edited March 25
    What kind of hum? Not a ground loop? Does it go away when you disconnect the interconnect cable?

    If you're going to pull the crossovers you might as well upgrade the caps and resistors.
    All the other treatments people will recommend here will go a long way too. Dynamat on the driver baskets, sealing the boxes, etc..

    The upgraded tweeters from Polk are definitely worth the money. Although, you've got quite a few you'll need to buy for that set.
    Lexicon RT-10, Parasound P5, McCormack DNA 0.5, Polk SDA CRS+, SVS Sub
    Schiit Modi, Luminous Audio Axiom II, McCormack DNA-1, Digital Phase AP 2
    Marantz AV7701, Emotiva XPA-5, Paradigm 11se Mkii, DCM Time Windows, NHT 2C, SVS Sub

    Spares - Kenwood C1 Pre, NAD 2200PE, Polk Monitor 10B, Polk Model 11, other odds and ends
  • Not a ground loop I believe. Swap same leads to a set of Klipsch towers and it goes away. Stays with and without the interconnect cable. Just sounds like a power hum.

    Yeah needing 8 of them at $50 a piece is more than I paid for the speakers lol. I've been researching the various mods and I believe the dynamat and additional sealing of the boxes is where I'll start then check the crossover components and replace and that don't check out.
  • nooshinjohnnooshinjohn Posts: 19,970
    edited March 25
    Try and get the RDO194’s before you do anything else.... no telling how much longer Polk will be providing them.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Goldfinger Diamond v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X0.2 three chassis preamp, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds.

    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

    “If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.”
  • michaeljhsda2michaeljhsda2 Posts: 1,879
    And sell the SL2000's to help defray the cost, there's plenty of people that want them.
    SDA SRS 1.2TL's w/ RD0198-1's, Sonicap, Mills
    AI-1 Dreadnought
    SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
    SDA 1C's stock
    SDA 2B TL's w/RD0198-1's
    SDA 2's (side by side tweeters) stock
    Yaqin MC-30L integrated tube amp
    Yaqin MS-20L integrated tube amp
  • tophatjohnnytophatjohnny Posts: 2,172
    Sweet deal. Congrats
    "if it's not fun, it's not worth it & remember folks, "It's All About The Music"!!
    *****************************
  • boston1450boston1450 Posts: 6,196
    Wonder if its something in your chain (system) that is causing this. Try unhooking everything & hook things back up 1by1 trying it each time -till- u narrow it to the culprit. Just a thought. Maybe a cable into pre not jiving with SDA speakers ?
    ...
    ...
    Randy in Maine
    SDA-CRS+ 198 tweeters. WMG upgraded crossovers.
    Larry's rings. Stands w/Polk Logo & Spiked nicely
    RTA15TL 198 tweeters. WMG upgraded crossovers.
    Larry's rings. Gloss tops shine. Spiked nicely
    Cs1000p-Yamaha-Parasound-Acurus
    MIT speaker cables-Pangea powercords
  • boston1450boston1450 Posts: 6,196
    edited March 25
    i had the same issue years back. Cant remember if it was something to do with the cable tv line or the wall outlet ground plug. Just a thought :)
    ...
    ...
    Randy in Maine
    SDA-CRS+ 198 tweeters. WMG upgraded crossovers.
    Larry's rings. Stands w/Polk Logo & Spiked nicely
    RTA15TL 198 tweeters. WMG upgraded crossovers.
    Larry's rings. Gloss tops shine. Spiked nicely
    Cs1000p-Yamaha-Parasound-Acurus
    MIT speaker cables-Pangea powercords
  • honestaquarianhonestaquarian Posts: 2,339
    Hum is caused by grounding issues with electronic components. Loudspeakers do not “produce” sounds. They only “reproduce” what is sent to them when they are hooked up properly and do not have faulty components. There is some sort of grounding potential difference somewhere that is the cause of the hum. Unfortunately these speakers have become a part of that issue (they are after all rather unique in their design) Problem is you practically have to be an electronics expert to track down the cause.
    IF AT ALL POSSIBLE try swapping out some upstream components in the same way that you did the speakers to see if the issue goes away.
    Doing upgrades to them is definitely going to cost more than what you paid for them, but it is definitely worth the effort and cost!
    Living room Home theater: Upgrade Company modified Onkyo PR-SC5509,Sunfire Cinema grand Signature 5 channel amp(1st gen),Carver TFM-45,Carver M-400a,Panasonic TC-P50ST60 50" Plasma(last gen before Plasma production stopped)Pioneer Elite DVL-91,Meridian 519 Dolby AC-3 RF Demodulator,Oppo Digital UDP-205,TiVo Bolt VOX,Nakamich BX-300,Technics SL-1200MKII,Shure V15 Type VxMR cartridge,Polk SDA-SRS 3.1 TL(with RD-0198 tweeters, upgraded with Larry's rings, black hole5,an Avel-Lindberg 1000VA isolation transformer, VR3 customer crossovers and internal wiring),Polk CS-1000P(with SL-6506 tweeter),Polk Monitor 5jr(with RD-0194 tweeters),Polk RT-35i (1),Polk Mini Monitors,Polk PSW150(4)Monster Power HTPS 7000 MKII Signature series,Monster Power AVS 2000 Signature Series,Various MIT,Monster,Upgrade Company and Belden interconnect,power,HDMI,Coax and Toslink Digital and speaker cables.

    Bedroom 2 channel system:Integra DTM 40.4,Nakamichi BX-100,TiVo mini,Musical Fidelity X-LPS,X-PSU,Carver TFM-25,Sony KV-34XBR970(last of the widescreen tube sets before production stopped)Technics SL-1200MKII,Shure V15 Type V MR cartridge,Polk RT-55(with SL-6506 tweeters),Polk PSW-200 in plexiglass(2),Sony Playstation 3 slim.Monster Power HTPS-7000,Monster AVS-2000, PowerVarious Kimber,Audioquest and MIT interconnects and speaker cables.
  • honestaquarianhonestaquarian Posts: 2,339
    Btw if you call Polk Audio to order some new drivers and inform them you are a Polk Forum member you will get a discount.
    Living room Home theater: Upgrade Company modified Onkyo PR-SC5509,Sunfire Cinema grand Signature 5 channel amp(1st gen),Carver TFM-45,Carver M-400a,Panasonic TC-P50ST60 50" Plasma(last gen before Plasma production stopped)Pioneer Elite DVL-91,Meridian 519 Dolby AC-3 RF Demodulator,Oppo Digital UDP-205,TiVo Bolt VOX,Nakamich BX-300,Technics SL-1200MKII,Shure V15 Type VxMR cartridge,Polk SDA-SRS 3.1 TL(with RD-0198 tweeters, upgraded with Larry's rings, black hole5,an Avel-Lindberg 1000VA isolation transformer, VR3 customer crossovers and internal wiring),Polk CS-1000P(with SL-6506 tweeter),Polk Monitor 5jr(with RD-0194 tweeters),Polk RT-35i (1),Polk Mini Monitors,Polk PSW150(4)Monster Power HTPS 7000 MKII Signature series,Monster Power AVS 2000 Signature Series,Various MIT,Monster,Upgrade Company and Belden interconnect,power,HDMI,Coax and Toslink Digital and speaker cables.

    Bedroom 2 channel system:Integra DTM 40.4,Nakamichi BX-100,TiVo mini,Musical Fidelity X-LPS,X-PSU,Carver TFM-25,Sony KV-34XBR970(last of the widescreen tube sets before production stopped)Technics SL-1200MKII,Shure V15 Type V MR cartridge,Polk RT-55(with SL-6506 tweeters),Polk PSW-200 in plexiglass(2),Sony Playstation 3 slim.Monster Power HTPS-7000,Monster AVS-2000, PowerVarious Kimber,Audioquest and MIT interconnects and speaker cables.
  • mlistens03mlistens03 Posts: 2,513
    Is your Rotel a common ground amplifier? if not there can be issues... I played my CRSs with an old Pioneer receiver that was common ground but did have about 10 ohms of resistance between the ground terminals, and it hummed.
    Nice find! Those are great speakers.
    Micah
    If you're reading this, I've put up devices for a week; maybe more. I'll talk you guys later!
    I've always thought the goal of high-end audio was not to have your neighbors bang on the wall and say, 'Turn that darn music down' but to have your neighbors bang on the wall and say, 'Tell your friends to go home and you can practice later this week'.
  • BMF35BMF35 Posts: 75
    Not a ground loop I believe. Swap same leads to a set of Klipsch towers and it goes away. Stays with and without the interconnect cable. Just sounds like a power hum.

    Yeah needing 8 of them at $50 a piece is more than I paid for the speakers lol. I've been researching the various mods and I believe the dynamat and additional sealing of the boxes is where I'll start then check the crossover components and replace and that don't check out.

    Epoxy or PowerGrap all of the mid-woofer magnets too when you have them out for the Dynamat treatment.
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