Polk SDA 2B Studio advice

vulcan
vulcan Posts: 91
in Vintage Speakers
I saw a Polk SDA 2B Studio set here locally for pickup for $225. Includes an
aftermarket pin/blade IC that was purchased off Ebay. It looks well made.
Overall the set looks original and in good condition. Hope to look at in person this weekend. Any suggestions on checking them out and the price? thanks
Polk Audio SDA 1C, Klipsch Legend KLF 20, Klipsch Chorus II
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Comments

  • codycatalist
    codycatalist Posts: 2,662
    Price doesn't seem bad to me. SDAs are getting harder to come by. I would play them if possible, make sure the drivers aren't frozen or have scratchy voice coils. Check for air leaks, make sure when playing with the SDA cable attached the SDA drivers are playing as intended.

    Good luck picking them up! I love my 2Bs.
    Just a dude doing dude-ly things

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  • RandyCroissant
    RandyCroissant Posts: 475
    Go check em out! They are great speakers I love mine.
    Yamaha RXA1030, Yamaha CD-S2100, Yamaha AS-2200, Bluesound node 2i
    Polk SDA2btl highly modded
    Polk SDA 1C modded
    Polk CS350 LS x2
    Kimber 8TC
    Sony 55" Bravia
    Wish list SVS sub

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  • vulcan
    vulcan Posts: 91
    Brought the 2B's home with me and hooked them up today. Sound pretty good,
    using an old Yamaha RX-730 receiver. There are a few rough spots, paid $200.
    Came with a fabricated IC, but bought a nice OEM cable from another member here.
    Intend to do the TL mod in a couple weeks. Thanks for your help.
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    Polk Audio SDA 1C, Klipsch Legend KLF 20, Klipsch Chorus II
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  • muncybob
    muncybob Posts: 3,042
    Good luck with the mods, helped my 2bs considerably but the best thing I ever did was put them with high current amps.
    Yep, my name really is Bob.
    Parasound HCA1500A(indoor sound) and HCA1000(outdoor sound), Dynaco PAS4, Denon DP1200 w/Shure V15 Type V and Jico SAS stylus, Marantz UD7007, Polk L600, Rythmik L12 sub.
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  • gmcman
    gmcman Posts: 1,806
    edited February 2020
    They respond well to upgrades, worth putting the money towards them to refresh the crossover. Moving up to a higher current amp will make a noticeable difference. Congrats!
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  • deronb1
    deronb1 Posts: 5,021
    Parasound HCA-1500a sounded great with my modded 2Bs.
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  • vulcan
    vulcan Posts: 91
    Recently completed the SDA2b mods, all the planned mods went smoothly. I installed the RD0-198 tweeters with the TL mod to the crossover. I highly recommend the Gimpods SDA boards for these projects.
    Pleased with the sound so far, been told there is the expected
    break in period of 200-300 hrs. I could tell right off the bass response was way better
    than before. Here are some pics i took. Thanks to David at DHS Speaker Service for your help. Craig

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    Polk Audio SDA 1C, Klipsch Legend KLF 20, Klipsch Chorus II
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  • vulcan
    vulcan Posts: 91
    I used Dayton Audio caps on the driver side and SonicCaps for the tweeter and TL circuit, the resistors are Mills. I also put all the polyfill back in the cabinets to the original configuration. oh, yeah, i removed the polyswitch and replaced it with .47 ohm 12 watt resistors. Thanks for looking.
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    Polk Audio SDA 1C, Klipsch Legend KLF 20, Klipsch Chorus II
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  • voltz
    voltz Posts: 5,384
    edited April 2020
    Nice Enjoy them.

    Dave did my CRS+'s crossover and did a TL upgrade to them..
    then I got a Set of SDA2b's which use the same crossovers..so for now I have the Crossovers Dave upgrade using all Sonic caps in the SDA 2B's..dang it to heck they really rock nicely :p love the new sound and the inductor he use to replace the original..Q something..why cant I say the correct name.. it added a nice added bass sound without the being sounding booming...

    anyways enjoy :)

    ohh found it..this:
    ERSE Super Q

    https://www.parts-express.com/erse-super-q-47mh-16-awg-500w-inductor-crossover-coil--266-924?gclid=CjwKCAjwv4_1BRAhEiwAtMDLsqTS2qzYmXwhNFCPVkMbR7zvK8H6YOQT3TKhuZk-c2ZwCYsHg-PUzBoCR-EQAvD_BwE
    2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge

    HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD
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