Polk SDS CRS+

2»

Comments

  • F1nut
    F1nut Posts: 46,007
    It's a bypass cap. Remove it and do not replace.
    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 t-u-r-d by the clean end."


    President of Club Polk

  • Okay, thanks!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    Replace the polyswitch with a .5 ohm resistor. The tweeter is too bright otherwise.
    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 t-u-r-d by the clean end."


    President of Club Polk

  • pitdogg2
    pitdogg2 Posts: 19,028
    The 750 pF silver mica goes away with better film caps. Yes it should be bypassing the mylar caps.

    Replace the polyswitch with a 10-12 watt .5ohm resistor. Vishay-Mills are favored.
  • Thank you for the suggestion and I will follow the suggestions!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • Is it okay to use Ceramic Cement Resistor for replacement of poly switch?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • I am going to upgrade the tweeter with RD0198-1. Will it be also too bright with jumper wires replacement of poly switch?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    Yes. The circuit was designed with the resistance of the polyswitch figured in, which is roughly .5 ohms, so if you don't compensate for that the result will be a hotter top end.

    Mills resistors are far better than the blocks.
    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 t-u-r-d by the clean end."


    President of Club Polk

  • Thanks!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • Should I replace the bypass capacitor or just take it out without any replacement?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • Dr_Wu
    Dr_Wu Posts: 238
    edited February 2019
    No need to replace it given the performance of today's caps (I've been advised).
    Speakers: Wharfedale EVO4.3; Amp: Parasound A21 Halo; Pre: NAD C165BEE; Regenerator: PS Audio PerfectWave Power Plant3; Streamer: Auralic Aries Mini/TeraDak LPS; Phono: AT LP-3/VM540Ml; CD: Onkyo C390>ProJect DAC Box S2+/TeraDak LPS; Cables: Wireworld Silver Eclipse7 speaker, High Fidelity Cables Reveal IC (pre/amp), Wireworld Silver Eclipse8 IC (streamer; DAC), Wireworld Silver Starlight digital coax (CD/DAC); Power cables: NRG Custom Cables "The Five" (regenerator; amp; streamer; DAC); Subwoofer: REL T/5i; EQ: Soundcraftsmen RP2212
  • Thanks!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • From where can I buy the inductors on the crossover? I searched but it is very difficult to get the replacement with exact value and wire gauge.
    Any help will be appreciated.
    Thanks
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • FestYboy
    FestYboy Posts: 3,857
    Not required unless they are damaged. Inductors don't wear out or change spec as they get older (unlike capacitors).
  • Finished the crossover and 4.1 TL. Huge difference in sound! Put sonicaps in tweeter circuit and clarity caps in woofer circuit. I am now really impressed with the sound!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • Thank you very much to everyone for the help!
    I am geeting a Pioneer SX 1010 this weekend. Anyone has any experience of Polk SDA with this receiver?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    Why a receiver? Get a nice integrated or separates.
    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 t-u-r-d by the clean end."


    President of Club Polk

  • F1nut wrote: »
    Why a receiver? Get a nice integrated or separates.

    Don't you like 70's Marantz , Sansui or Pioneer receivers? Just curious why you like integrated over those biggies?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    It's not that I don't appreciate vintage receivers, but you are not going to get the best sound out of them and therefore not the best out of the SDA's.
    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 t-u-r-d by the clean end."


    President of Club Polk

  • F1nut wrote: »
    It's not that I don't appreciate vintage receivers, but you are not going to get the best sound out of them and therefore not the best out of the SDA's.

    F1nut:
    Now I am running these with fully restored Marantz 2270 and it sounds awesome. I bought SX 1010 to have little bit more power and it will be eventually restored. I have another pair connected to quite expensive new Denon receiver but I think my Marantz driving these speakers better than Denon though Denon is a receiver not integrated two channel stereo amp. What new integrated you suggest?
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    981ecgo6e4dh.jpg
    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 t-u-r-d by the clean end."


    President of Club Polk

  • Thanks!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • It is in my wishlist!
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • How is its little brother?
    89awgkvi8hxb.jpg
    Polk SDA 1C and CRS+, Klipsch Forte II, Focal Chorus 706, Sansui: 9090DB, Eight Deluxe, AU-9900; Pioneer SX-1010, Marantz: 300DC, 3200B, 2325, 2275, Thorens TD-145, Technics SL-1650, Pioneer PL-707, Pioneer RT-707
  • F1nut
    F1nut Posts: 46,007
    That'll work perfectly.
    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 t-u-r-d by the clean end."


    President of Club Polk