SDA 1c's have finally escaped from the closet !

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gyosa
gyosa Posts: 699
in Vintage Speakers
Hi everyone!
Longtime lurker here .... great place !

Finally talked the wife into letting me use the SDA's in the bedroom ....
They've been banished to the closet for the last 15 years ...
I bought them new in '88 ....

Couple of questions please ...

I assume they will need some attention....
Besides the internal mods - what would you recommend first and in what order ?

Between 4 new rdo 194 tweeters and crossover rebuilds from westmassguy?
Keeping in mind they will be doing mostly low volume listening in the bedroom ....
Which of the crossover rebuilds would u recommend between his 4 options ?
Cost is an issue ..... I know the tweets are a must , so that's a given expense ...
Which crossover service will do ? Not looking to make these world class speakers - they'll be in the bedroom ....

Oh , they presently work fine and sound good and are in mint condition .... I'm sure they sounded better when they were new ....

So question is - tweeters first or crossovers first ... and which crossovers?
Gonna do it in 2 phases ....

Equipment I have on hand is - B&K ex-442 amp ( original owner ) , a new Parasound A21 amp ,
And a PS audio 4.6 preamp (original owner) .... streaming duty is through a Yamaha wxc-50 ....

Thank you in advance !

-BK
Dayens Ampino , Yamaha wxc-50 , Polk SDA 1c’s ( my first love .. ) , Kimber Kable 4TC, Sony 42” - BEDROOM

B&K EX-442 ( it will go in my casket when I die ... ) , PS Audio 4.6 preamp ( old school , but it still jams on ... ) , Eversolo DMP-A6 , Boston Acoustic voyager 7’s - POOL

Parasound A21, Eversolo DMP-A8 , Yamaha wxc-50 , Kimber Kable 4vs , Salk Supercharged Song towers ( difficult choice between these and my family if I had to choose ... 😩 ) , Sony XBR-A8F 65” OLED - DEN , MAIN RIG

PS Audio S300 - sitting in the closet for now …

Onkyo TX-nr609 , Polk atrium 7 , Boston acoustic sound ware (4) , Boston acoustic sub , B&W center , Sharp 65” TV - PATIO
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  • verb
    verb Posts: 10,176
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    Welcome to CP! I'm in the middle of a 1C upgrade. Just got my XO's back from @westmassguy . He does great work!

    http://forum.polkaudio.com/discussion/179960/another-1c-upgrade-path/p1

    Tweeters are easy to replace and inexpensive.

    Have fun!
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
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  • gyosa
    gyosa Posts: 699
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    Been following your progress with great interest .....

    Bk
    Dayens Ampino , Yamaha wxc-50 , Polk SDA 1c’s ( my first love .. ) , Kimber Kable 4TC, Sony 42” - BEDROOM

    B&K EX-442 ( it will go in my casket when I die ... ) , PS Audio 4.6 preamp ( old school , but it still jams on ... ) , Eversolo DMP-A6 , Boston Acoustic voyager 7’s - POOL

    Parasound A21, Eversolo DMP-A8 , Yamaha wxc-50 , Kimber Kable 4vs , Salk Supercharged Song towers ( difficult choice between these and my family if I had to choose ... 😩 ) , Sony XBR-A8F 65” OLED - DEN , MAIN RIG

    PS Audio S300 - sitting in the closet for now …

    Onkyo TX-nr609 , Polk atrium 7 , Boston acoustic sound ware (4) , Boston acoustic sub , B&W center , Sharp 65” TV - PATIO
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  • FestYboy
    FestYboy Posts: 3,861
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    I would think the XO should be first, it will also show the greatest improvement. The RDOs will be the fine tuning. And don't forget to reseal and hurricane nuts.
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  • audioluvr
    audioluvr Posts: 5,432
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    Definitely tweets first. Crossovers will make a big improvement but are bigger budget. I went with the Dayton low pass, sonicap high pass and the sub- bass inductor upgrade. Won't be able to report on that until next week... The RDO's were WAY nice. Not harsh or fatiguing like the stock tweeters both at low and high volume.
    Gustard X26 Pro DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables
    Harman Kardon T65C w/Grado Gold. (Don't laugh. It sounds great!)

    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January. by Dr. Sardonicus
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  • boston1450
    boston1450 Posts: 7,456
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    i upgraded the tweeters in my 1c's & they can be used in new upgraded crossovers when budget is there. I then put spikes on them & noticed a much bigger difference right off. Bass was amazing & the overall sound they produced seemed to be more controlled. Im not good at explaining. I had planned on doing crossovers,but never happened. Wonderful speaker
    ..
    ..
    ..
    Randy/Maine
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  • verb
    verb Posts: 10,176
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    boston1450 wrote: »
    i upgraded the tweeters in my 1c's & they can be used in new upgraded crossovers when budget is there. I then put spikes on them & noticed a much bigger difference right off. Bass was amazing & the overall sound they produced seemed to be more controlled. Im not good at explaining. I had planned on doing crossovers,but never happened. Wonderful speaker

    Nice to hear (pun intended) :smile:@boston1450 ! I did the same on my 2B's that I karma'd out not to recently.

    Couple things:
    Did you re-use the original gaskets? Or make new ones?

    Use washers at the attachment points to compensate for material thickness differences when compared to the old SL2000's? See below:

    RDO rattles thread (courtesy of @VSAT88)

    http://forum.polkaudio.com/discussion/comment/2378871#Comment_2378871
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
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  • boston1450
    boston1450 Posts: 7,456
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    I installed Larry's rings on tweeters n woofers n passive & used original gaskets that were on all listed above Because they were still good. Unless its damaged-reuse it OR use the stuff they recommend here. I cant remember what its called. (Armacell-Armaflex) You know the stuff :)
    ..
    ..
    ..
    Randy/Maine
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  • verb
    verb Posts: 10,176
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    That's cool. How about the washers on the new tweeters? I wouldn't have noticed until i read the thread about his RDO-194's rattling. Very easy, I believe I used #10 washer, super glued in place.
    Basement: Polk SDA SRS 1.2tl's, Cary SLP-05 Pre with ultimate upgrade,McIntosh MCD301 CD/SACD player, Northstar Designs Excelsio DAC, Cambridge 851N streamer, McIntosh MC300 Amp, Silnote Morpheus Ref2, Series2 Digital Cables, Silnote Morpheus Ref2 Series2 XLR's, Furman 15PFi Power Conditioner, Pangea Power Cables, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, EAR Acute CD Player, EAR 834L Pre, Northstar Designs Intenso DAC, Antique Sound Labs AV8 Monoblocks, Denon UDR-F10 Cassette, Acoustic Technologies Classic FR Speakers, SVS SB12 Plus sub, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: Dayens Ampino Integrated Amp, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 sub, Blue Jeans RCA IC's, Shunyata Hydra 8 Power Conditioner
    Living Room: Peachtree Nova Integrated, Cambridge CXN v2 Streamer, Rotel RCD-1072 CD player, Furman 15PFi Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi sub
    Garage #1: Cambridge Audio 640A Integrated Amp, Project Box-E BT Streamer, Polk Tsi200 Bookies, Douglas Speaker Cables, Shunyata Power Conditioner
    Garage #2: Cambridge Audio EVO150 Integrated Amplifier, Polk L200's, Analysis Plus Silver Oval 2 Speaker Cables, IC's TBD.
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  • pitdogg2
    pitdogg2 Posts: 24,560
    edited March 2018
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    verb wrote: »
    That's cool. How about the washers on the new tweeters? I wouldn't have noticed until i read the thread about his RDO-194's rattling. Very easy, I believe I used #10 washer, super glued in place.

    This is a new problem. It wasn't needed on the older batches of rdo194
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  • SDA1C
    SDA1C Posts: 2,069
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    To op. Everything you mentioned plus rings (i might have an extra set) and a block of granite or maple-japanese maple is my preferred density, spikes. Definitely spikes and be sure they poke throygh thw carpet to wood.. set of updated drivers while you mod the stockers.. 1cs kik a$$$. Dynamat the back side of the faces only then put 15lbs of lead shot in the bottom.
    Too much **** to list....
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  • audioluvr
    audioluvr Posts: 5,432
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    Do this to them.

    hfkfbkijqqbg.jpeg

    Solved all the crappy manufacturing defects.
    Gustard X26 Pro DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables
    Harman Kardon T65C w/Grado Gold. (Don't laugh. It sounds great!)

    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January. by Dr. Sardonicus
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  • Viking64
    Viking64 Posts: 6,679
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    I was certain the title of this thread would start a whole bunch of jokes about a whole bunch of people. :p
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  • Nightfall
    Nightfall Posts: 10,067
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    How gracious of her. o:)
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
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  • gyosa
    gyosa Posts: 699
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    Thanks smallies!
    Think I’ll get the crossovers done by DHS and see how they sound ....
    Got the treble cranked up pretty high now and it’s still not enough - bedroom is carpeted , drapes etc .... not exactly a “lively” room - and I’ve been a airline pilot for 30 years , so my high freq hearing isn’t what it used to be ......

    -bk
    Dayens Ampino , Yamaha wxc-50 , Polk SDA 1c’s ( my first love .. ) , Kimber Kable 4TC, Sony 42” - BEDROOM

    B&K EX-442 ( it will go in my casket when I die ... ) , PS Audio 4.6 preamp ( old school , but it still jams on ... ) , Eversolo DMP-A6 , Boston Acoustic voyager 7’s - POOL

    Parasound A21, Eversolo DMP-A8 , Yamaha wxc-50 , Kimber Kable 4vs , Salk Supercharged Song towers ( difficult choice between these and my family if I had to choose ... 😩 ) , Sony XBR-A8F 65” OLED - DEN , MAIN RIG

    PS Audio S300 - sitting in the closet for now …

    Onkyo TX-nr609 , Polk atrium 7 , Boston acoustic sound ware (4) , Boston acoustic sub , B&W center , Sharp 65” TV - PATIO
    · Share on FacebookShare on Twitter