Securing SDA 2B crossover boards

muncybob
muncybob Posts: 3,042
edited April 2013 in Vintage Speakers
Last night I ventured for the 1st time to the inside of my cabinets....interesting trip to say the least. What are those plastic clips called that secure the boards? Upon removal of the crossovers I discoverd that I had missing and broken clips so I need to replace them....where can I get them? I'm hoping there is a better way to secure the boards other than what Polk originally used?
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.
Post edited by muncybob on
· Share on FacebookShare on Twitter

Comments

  • quadzilla
    quadzilla Posts: 1,543
    edited December 2011
    Check this thread for a good idea. http://www.polkaudio.com/forums/showthread.php?122119-My-SDA-CRS-Upgrade-Thread
    Turntable: Empire 208
    Arm: Rega 300
    Cart: Shelter 501 III
    Phono Pre: Aural Thrills
    Digital: Pioneer DV-79ai
    Pre: Conrad Johnson ET3 SE
    Amp: Conrad Johnson Evolution 2000
    Cables: Cardas Neutral Reference
    Speakers: SDA 2.3TL, heavily modified
    · Share on FacebookShare on Twitter
  • heiney9
    heiney9 Posts: 25,165
    edited December 2011
    I believe you are talking about "stand offs". They can be purchased at a place like Mouser and Digikey, IIRC.

    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!
    · Share on FacebookShare on Twitter
  • muncybob
    muncybob Posts: 3,042
    edited December 2011
    quadzilla wrote: »
    Check this thread for a good idea. http://www.polkaudio.com/forums/showthread.php?122119-My-SDA-CRS-Upgrade-Thread

    Cool idea! Looks like a possibility.
    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.
    · Share on FacebookShare on Twitter
  • muncybob
    muncybob Posts: 3,042
    edited December 2011
    OK, next question. I'm still using the original blade/blade interconnect cable. I believe Polk still sells these...would a new one be an upgrade to the original as far as quality of materials is concerned? As far as I can tell the one I have is working as intended but if they have an improved cable then I guess it's worth it?
    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.
    · Share on FacebookShare on Twitter
  • quadzilla
    quadzilla Posts: 1,543
    edited December 2011
    No, I'm pretty sure it's the same cable.
    Turntable: Empire 208
    Arm: Rega 300
    Cart: Shelter 501 III
    Phono Pre: Aural Thrills
    Digital: Pioneer DV-79ai
    Pre: Conrad Johnson ET3 SE
    Amp: Conrad Johnson Evolution 2000
    Cables: Cardas Neutral Reference
    Speakers: SDA 2.3TL, heavily modified
    · Share on FacebookShare on Twitter
  • brgman
    brgman Posts: 2,859
    edited December 2011
    muncybob wrote: »
    OK, next question. I'm still using the original blade/blade interconnect cable. I believe Polk still sells these...would a new one be an upgrade to the original as far as quality of materials is concerned? As far as I can tell the one I have is working as intended but if they have an improved cable then I guess it's worth it?

    Bob you said you have SDA2B's right.
    Maybe someone can answer this for us but mine are pin/blade.
    Did they make both p/b and b/b in a SDA2B? And if so can the crossovers be interchanged without issue?
    Main Rig-Realistic AM/FM Record player 8 track boasting 4 WPC

    Backup Rig-2 CH-Rogue Audio Zeus w/Factory Special Dark Mods,Joule-Electra 300ME Platinum Preamp,OPPO-105 w/Modwright Tube Mod, Auralic Aries G2.1,Polk 2.3TL,3.1TL's,Dreadnought,RTA-15TL's,1C's All Fully Modded,2xRTA-12c's ,Benchmark DAC3 HGC,Synology NAS,VPI Scout w/Dynavector DV-20XH and Rogue Audio Ares Phono Preamp,Sony PCM-R500 DAT,HHB-850 Pro CDR,Tascam CC-222SLMKII Cassette/CDR,MIT S3.3 Shotgun Cables,Shunyata Hyra-8,Shunyata and Triode Labs Power Cords

    I’M OFFENDED!!!!
    · Share on FacebookShare on Twitter
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited December 2011
    brgman wrote: »
    Bob you said you have SDA2B's right.
    Maybe someone can answer this for us but mine are pin/blade.
    Did they make both p/b and b/b in a SDA2B? And if so can the crossovers be interchanged without issue?

    Yes they did and yes you can but you would need to change one driver as well.
    · Share on FacebookShare on Twitter
  • brgman
    brgman Posts: 2,859
    edited December 2011
    What driver would that be sir?
    Main Rig-Realistic AM/FM Record player 8 track boasting 4 WPC

    Backup Rig-2 CH-Rogue Audio Zeus w/Factory Special Dark Mods,Joule-Electra 300ME Platinum Preamp,OPPO-105 w/Modwright Tube Mod, Auralic Aries G2.1,Polk 2.3TL,3.1TL's,Dreadnought,RTA-15TL's,1C's All Fully Modded,2xRTA-12c's ,Benchmark DAC3 HGC,Synology NAS,VPI Scout w/Dynavector DV-20XH and Rogue Audio Ares Phono Preamp,Sony PCM-R500 DAT,HHB-850 Pro CDR,Tascam CC-222SLMKII Cassette/CDR,MIT S3.3 Shotgun Cables,Shunyata Hyra-8,Shunyata and Triode Labs Power Cords

    I’M OFFENDED!!!!
    · Share on FacebookShare on Twitter
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited December 2011
    Toolfan66 wrote: »
    Yes they did and yes you can but you would need to change one driver as well.


    Edit: I was thinking about CRS+'s the 2B's will have the same drivers p/b or b/b but you can still swap crossovers. The b/b 2B's will usually have a 2 piece crossover as the p/b 2B's will have the 1 piece board.
    · Share on FacebookShare on Twitter
  • gimpod
    gimpod Posts: 1,793
    edited December 2011
    My understanding is that the early 2B's with b/B IC (1987) had the single board style crossovers like the p/B 2B's but used the 2A cabs, I believe they are the studio version. Also the stand-offs shown in the link are for a 8-32 screw hole, I think you would need ones that fit a 6-32 screw hole as the mounting holes on the stock boards are smaller.
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
    · Share on FacebookShare on Twitter
  • Toolfan66
    Toolfan66 Posts: 17,243
    edited December 2011
    I have had 3 sets of 2B's come through my house all had the wood caps top and bottom.

    1 set had P/B with single board
    1 set with B/B with single board
    1 set with B/B with dual boards

    All were stock looking boards with no upgrades when I got them now I'm not sure if anything had been swapped during the last 20 years or Polk using old parts up..

    To sets of these did end up getting upgrades by two people that I sold them too (friends at work)
    · Share on FacebookShare on Twitter
  • gimpod
    gimpod Posts: 1,793
    edited December 2011
    That's the fun part about SDA's "you never know what you have until you open them up", It's like Christmas morning. :biggrin:
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
    · Share on FacebookShare on Twitter
  • muncybob
    muncybob Posts: 3,042
    edited December 2011
    brgman wrote: »
    Bob you said you have SDA2B's right.
    Maybe someone can answer this for us but mine are pin/blade.
    Did they make both p/b and b/b in a SDA2B? And if so can the crossovers be interchanged without issue?

    Yes 2B's with single boards. I removed the board w/o taking out the inductor(?), looks like I could have/should have removed the whole assembly as one piece?
    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.
    · Share on FacebookShare on Twitter
  • brgman
    brgman Posts: 2,859
    edited December 2011
    muncybob wrote: »
    Yes 2B's with single boards. I removed the board w/o taking out the inductor(?), looks like I could have/should have removed the whole assembly as one piece?

    would have been easier to just unbolt the whole thing from the back IMHO
    you may want to bring those
    Main Rig-Realistic AM/FM Record player 8 track boasting 4 WPC

    Backup Rig-2 CH-Rogue Audio Zeus w/Factory Special Dark Mods,Joule-Electra 300ME Platinum Preamp,OPPO-105 w/Modwright Tube Mod, Auralic Aries G2.1,Polk 2.3TL,3.1TL's,Dreadnought,RTA-15TL's,1C's All Fully Modded,2xRTA-12c's ,Benchmark DAC3 HGC,Synology NAS,VPI Scout w/Dynavector DV-20XH and Rogue Audio Ares Phono Preamp,Sony PCM-R500 DAT,HHB-850 Pro CDR,Tascam CC-222SLMKII Cassette/CDR,MIT S3.3 Shotgun Cables,Shunyata Hyra-8,Shunyata and Triode Labs Power Cords

    I’M OFFENDED!!!!
    · Share on FacebookShare on Twitter
  • jestwaitn
    jestwaitn Posts: 33
    edited April 2013
    Toolfan66 wrote: »
    Edit: I was thinking about CRS+'s the 2B's will have the same drivers p/b or b/b but you can still swap crossovers. The b/b 2B's will usually have a 2 piece crossover as the p/b 2B's will have the 1 piece board.

    newbie looking at a pair of SDA 2B polks. what the heck is this p/b b/b stuff? thanks. :smile:
    · Share on FacebookShare on Twitter
  • treitz3
    treitz3 Posts: 19,029
    edited April 2013
    Hello, jestwaitn. Pin/blade or blade/blade. What they are talking about is the type of interconnect cable configuration that connects the two speakers to offer you the SDA. Welcome to the forum BTW.

    Tom
    ~ 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. ~
    · Share on FacebookShare on Twitter
  • jestwaitn
    jestwaitn Posts: 33
    edited April 2013
    ok. thanks. didn't realize that there were differences in these.

    chap has a pair of the 2B for $200, which i'm considering. crossovers are upgraded & has new 3000 tweeters. haven't heard them yet. :smile:
    · Share on FacebookShare on Twitter
  • ken brydson
    ken brydson Posts: 8,761
    edited April 2013
    gimpod wrote: »
    That's the fun part about SDA's "you never know what you have until you open them up", It's like Christmas morning. :biggrin:

    Sounds more like Forest Gump...:smile:
    · Share on FacebookShare on Twitter
  • jestwaitn
    jestwaitn Posts: 33
    edited April 2013
    this might have been true on JBL also. :smile:
    · Share on FacebookShare on Twitter
  • F1nut
    F1nut Posts: 50,557
    edited April 2013
    2BTL's for $200.00? You better be in your car going to get them right now.
    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

    · Share on FacebookShare on Twitter
  • jestwaitn
    jestwaitn Posts: 33
    edited April 2013
    so that's a good deal, then?

    :question:
    · Share on FacebookShare on Twitter
  • TennMan
    TennMan Posts: 1,266
    edited April 2013
    jestwaitn wrote: »
    so that's a good deal, then?

    :question:
    In good condition? Absolutely!
    • SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
    • Crossover upgrades by westmassguy
    • Marantz 1504 AVR (front speaker pre-outs to Adcom 555)
    • Adcom GFA-555 amp · Upgrades & speaker protection added by OldmanSRS
    • Pioneer DV-610AV DVD/CD player
    • SDA CRS+ · Hidden away in the closet
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited April 2013
    jestwaitn wrote: »
    ok. thanks. didn't realize that there were differences in these.

    chap has a pair of the 2B for $200, which i'm considering. crossovers are upgraded & has new 3000 tweeters. haven't heard them yet. :smile:
    Just verify the crossovers were upgraded AND modified to accept the SL3000. If the owner just replaced the caps and resistors, without adding the 5.8uf cap, they haven't been "TL'd", and will not sound their best.
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter
  • westmassguy
    westmassguy Posts: 6,850
    edited April 2013
    muncybob wrote: »
    OK, next question. I'm still using the original blade/blade interconnect cable. I believe Polk still sells these...would a new one be an upgrade to the original as far as quality of materials is concerned? As far as I can tell the one I have is working as intended but if they have an improved cable then I guess it's worth it?
    You'd be better off converting the old blade/blade connectors to Speakon, and making yourself a nice new cable with heavy gauge conductors. It's not that difficult, and you'll never have to worry about those connections ever again.
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
    · Share on FacebookShare on Twitter