Original SDA CRS problem

TampaTwo
TampaTwo Posts: 12
edited June 2010 in Vintage Speakers
I have a pair of original sda crs speakers, with the dual tweeters per speaker. I recently ordered and recieved the twin blade interconnect cable from polk (very helpfull on the phone) and finally got to hear these beauties in full sda mode. When the cable is hooked in i get sound out of all 4 tweeters and all 4 drivers. But if i switch the balance between left and right, when i go left i only get sound out of one driver and tweeter on the left speaker and no sound at all out of the right speaker box, whereas if i go right on the balance i get sound out of both the right tweeter and driver on the rt speaker box, and the left sda tweeter and driver in the left speakerbox. I tried swapping the speakers and still had the same problem on the same sides, the problem was not speaker box specific. Any suggestions? Is this a bad resistor / capacitor crossover problem? Seems odd that the problem did not follow the speaker when i swapped them...
Post edited by TampaTwo on

Comments

  • engtaz
    engtaz Posts: 7,664
    edited August 2007
    Let me get this straight:
    when you have the balance in the center everything pays and correctly.
    when you turn balance to left only 1 left driver and 1 left tweeter are working
    That is the way SDA works Left shares with SDA driver on right speaker and visa versa
    engtaz

    I love how music can brighten up a bad day.
  • F1nut
    F1nut Posts: 50,757
    edited August 2007
    What pre amp and power amp are you using?
    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

  • Joe08867
    Joe08867 Posts: 3,919
    edited August 2007
    Like Engatz said that is SDA in a nutshell.

    You will only hear all the speakers in each cabinet when the balance is set in the middle.

    When you set the balance to one side or the other it is just like diconnecting the interlink cable.

    Hope that helps.
  • danger boy
    danger boy Posts: 15,722
    edited August 2007
    this was common with my SRS's when I had them. don't move the balance from center.. and everything will be fine. Once balance is at center everything is fine.. i don't see the problem.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
  • VR3
    VR3 Posts: 28,791
    edited August 2007
    Whats balance?

    I use a tape measurer... hmmmmm
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • F1nut
    F1nut Posts: 50,757
    edited August 2007
    But if i switch the balance between left and right, when i go left i only get sound out of one driver and tweeter on the left speaker and no sound at all out of the right speaker box, whereas if i go right on the balance i get sound out of both the right tweeter and driver on the rt speaker box, and the left sda tweeter and driver in the left speakerbox.

    That is not SDA in a nutshell. There should be some sound coming from the right speaker when the balance is full left and he states above that there is no sound, so there is a problem.

    My question as to what gear he is using is to see if he's using a common ground amp.

    TampaTwo, if you call Polk and ask nicely, they will send you an SDA troubleshooting guide.
    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

  • engtaz
    engtaz Posts: 7,664
    edited August 2007
    Good call F1
    engtaz

    I love how music can brighten up a bad day.
  • TampaTwo
    TampaTwo Posts: 12
    edited August 2007
    I've narrowed it down to where when the balance is set to the middle, the right speaker is playing in stereo (each driver / tweeter combination playing a seperate channel) and the left speaker is playing in mono (only one channel is playing thru both sets drivers and tweeters) So maybe it is a cable problem? I'll try swapping the cable when i get home and see if the problem follows the cable.
  • TampaTwo
    TampaTwo Posts: 12
    edited August 2007
    Oh yeah, the amp is a common ground carver tfm-35, no problems there.
  • F1nut
    F1nut Posts: 50,757
    edited August 2007
    Double check that you have the speakers wired in phase.
    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

  • TampaTwo
    TampaTwo Posts: 12
    edited August 2007
    Phase was the problem. Probably best that i stick to two channel for the time being..... Thanks all!
  • F1nut
    F1nut Posts: 50,757
    edited August 2007
    You're welcome.
    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

  • engtaz
    engtaz Posts: 7,664
    edited August 2007
    F1 to the rescue.
    engtaz

    I love how music can brighten up a bad day.
  • TampaTwo
    TampaTwo Posts: 12
    edited August 2007
    WOW! These little **** are singin'! Why would anyone ever use these without the interconnect?
  • engtaz
    engtaz Posts: 7,664
    edited August 2007
    No because then your only using half the speaker and that would be a waste of speaker of a great speaker.
    engtaz

    I love how music can brighten up a bad day.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    Old thread but this just happened to me. Years ago I was asking for help and got upset and had to leave for 4 years. I came back a year ago or so and met Chris a while back. Well he graciously offered to come over and help diagnose this same problem with my CRS's. We spent alot of time and process of elimination tests and it got late so we lost round one with these things. A few days passed and I went back at it by myself with a microscope type mentality. Again I still saw nothing wrong with all internal wiring on both speakers. Just like with Chris a few nights before. Next step, and last resort, check the screw caps on the outside and see if they are on the right posts....:eek:....one was backwards.!!

    I swithed the one I thought was backwards and they started to play correctly with the balance test. I then found out the two tweeters on the left speaker play softer than the right so I split them up and put the weeker ones to the outside of each speaker for now.

    I'm one happy camper right now. Thanks Chris for your efforts the other night, I wouldn't have gotten as far as I did and then the cure without your determination to steam roll this project. This 5 year old problem can be classified as a victory now. I need more of these!!

    Where were you F1nut when Dorockusai slamed the door in my face years ago? I missed alot of SDA listening fun throught those years..:( Maybe I left to soon years ago. Anyway water under the bridge and I know the cure for this problem...PHASE.;)

    In closing, these are very , very fine sounding speakers with out much lacking except the very bottom of the range and that could be overlooked if listening at low to moderate volumes. They're First class speakers!
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    engtaz wrote: »
    F1 to the rescue.

    :rolleyes:.Almost here to;), but Chris and myselfs determination rescued this pair..:)


    Ps. sda problem,? rule #1 should be ..Check the Phase.:p
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • F1nut
    F1nut Posts: 50,757
    edited June 2010
    Where were you F1nut when Dorockusai slamed the door in my face years ago?

    Huh?
    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

  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    F1nut wrote: »
    Huh?

    You joined in 2002

    I'm GUESSING you might have been an active member around 2005.
    You told the person in this thread to check his phase to possably solve his problem with his CRSs.I was looking for help around 2005. I had the same problem with my CRSs. EXACTLY the same.

    I tried to bring up my old thread and was getting tired of searching and about to give up and then saw this Post and thread.;) So I added to this one...My old thread shows what happened back then and I wanted to ad that I, with help from ChrisD, that I finally solved the mystery.

    Your advise to him was the CURE. A phase issue. You are the man.:cool:

    I said to you last night in my post what I WISHED had happened in my old thread INSTEAD of what did. That's all.:)

    I just wish you/someone else, anybody would've given me the advise or direction years ago on the forum while I was wondering why Dorokusai wanted to help me off line. You might not have seen my post for help for all we know, Heck, I don't know with out seeing my old thread, (which I can probably find it today searching in another way) who chimed in but if the phase issue was presented to me and I still missed the crossed screw caps, it was my oversight. Easy to do, with positive wire to red terminals (so I though)on both speakers and they still didn't work right!!

    Anyway some chimed in to console me after who I thought was the only one or BEST one to have been able to help me get my CRSs working right slamed his door shut on helping me because of my remark about $.
    Their advice to shake it off just wasn't enough and I left for 4 years. My mistake on that issue.:(

    Since I've been back, I see how some members are and have seen the same thing happen to other people. Misunderstandings abound here at Club Polk and I'm learning with age to just be careful and explain, if I can, if there is a ? about a remark I say.

    I know there are 2/3 of us that know about this SDA phase issue now.:)
    Who ever is on line when that question on balance arises again, you, Chris and I should be able to help them out.

    Thanks again for your continued support to people who need it here on this forum!

    My CRSs are now in order except the needed $$ upgrades.;)
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • F1nut
    F1nut Posts: 50,757
    edited June 2010
    Sorry Tony, I obviously missed your thread in 2005. I am glad that you finally fixed the issue and that you decided to return home. :)
    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

  • dorokusai
    dorokusai Posts: 25,577
    edited June 2010
    Where were you F1nut when Dorockusai slamed the door in my face years ago? I missed alot of SDA listening fun throught those years..:( Maybe I left to soon years ago. Anyway water under the bridge and I know the cure for this problem...PHASE.;)

    What are you talking about Tony? I'm not sure I understand but glad you're fixed either way.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    What are you talking about Tony? I'm not sure I understand but glad you're fixed either way.


    :rolleyes:Thanks Mark for the gladness that my CRS's are finally working. I was listening to them again tonight after I re-clothed their grills. Amazing speakers.

    I'm glad you've forgotten that time in your life when you thought I was total donkey for me suggesting to another member you might want to get paid for your advice and that's why you wanted to discuss my CRS's fix off the forum.
    Your last post to me back then said you just prefer to help people that way sometimes and that's the only reason. I found that out too late of course and was probably on your ignore list for a while after that.

    Recap:
    Along, long time ago, It was 2:00 am when I went to bed waiting for you to email me and when I logged back on my conversation with another member led me to say what I thought.You then posted your anger at the thought, and that was about that on you offering to help me.

    No harm or ill will was intended but like so many people in my life, what I say sometimes comes out sounding different than it's true but honest and sinsere intention or delivery.
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • dorokusai
    dorokusai Posts: 25,577
    edited June 2010
    A conversation 4 years ago?

    One, you've never been on my ignore list since I cannot do that.

    Two, I've never suggested that my mundane advice was worth any money and have done countless hours of freebie work and shipped countless items on my own dime.

    Three, It appears that I was trying to help and was offended at the prospect of charging for that help, of which I would find utterly ridiculous and offensive.

    If you left for 4 years based on mis-communication....sorry but a simple email could have cured that boil. I've never received monetary compensation for helping ANY Polkie on ANYTHING since 2003. FACT. Everything I do is 100% F R E E in regards to membership.

    I don't recall that event nor conversation and if you want to hold it against me, so be it. The rolled eyes emoticon speaks volumes and I guess that's the way it goes.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    dorokusai wrote: »
    A conversation 4 years ago?

    One, you've never been on my ignore list since I cannot do that.

    Two, I've never suggested that my mundane advice was worth any money and have done countless hours of freebie work and shipped countless items on my own dime.

    Three, It appears that I was trying to help and was offended at the prospect of charging for that help, of which I would find utterly ridiculous and offensive.

    If you left for 4 years based on mis-communication....sorry but a simple email could have cured that boil. I've never received monetary compensation for helping ANY Polkie on ANYTHING since 2003. FACT. Everything I do is 100% F R E E in regards to membership.

    I don't recall that event nor conversation and if you want to hold it against me, so be it. The rolled eyes emoticon speaks volumes and I guess that's the way it goes.

    Again, the rolled eyes emoticon is just looking up at a thread I quoted from you after I wrote an explanation. He's just looking up there , that is all I put him in for.Another mis-understanding from you this time I supose. I allways start some qoutes with him looking back up at it. It's like he's pointing. No other underling meaning of sarcastic thoughts from me at all intended there.....Just a circle face looking up to me.

    yeh right! bs!...has never been used by me by using that emoticon.

    The sarcastic label that's on that emoticon is a shame for when I use it, I rarely would use a sarcastic sentence/image in my way of comunicating to anybody. It's not me I don't think. I see the face smilling ,looking up, only.

    I held your shun of me for a long long long time.I lost sleep over it at first. Then it turned into months ,then years. Well time heals all if you live long enough and I've been healed from that altercation for years now. Alot more serious life challenges made me forget about that little tuffle and hold no grudges against you now whatsoever. I know kind of how you are now but I didn't back then.

    I even dedicated my 666th post to you. All was forgiven and forgotten about even before then by me.

    Thanks again Mark for your input into this club and more so to the Company of Polk audio. You guys are putting out some very nice speakers lately and I'm sorry the prices have to be so damn low compared to their quality constuction, fit and finish.

    I still havn't researched the original old post but I will. Just to see who tried to calm my emotions down. It's funny now since I've seen quite a few others doing the same kind of misunderstandings over the past 2 years now. I'll ttyl, Tony
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    dorokusai wrote: »
    A conversation 4 years ago?

    One, you've never been on my ignore list since I cannot do that.

    Two, I've never suggested that my mundane advice was worth any money and have done countless hours of freebie work and shipped countless items on my own dime.

    I never insinuated you wanted/demanded payment from me for your help and advice.I only said MAYBE you wanted to get paid and didn't want to brodcast it over the forum how much.simple as that.simple dumd assumption. I DID Not KNOW people helped here for free. I was new to computing and enternet stuff at that time to boot. A real newbe to this forum and website stuff. Not anymore.:D

    Three, It appears that I was trying to help and was offended at the prospect of charging for that help, of which I would find utterly ridiculous and offensive.

    I found that out that day long ago for sure.;)

    If you left for 4 years based on mis-communication....sorry but a simple email could have cured that boil. I've never received monetary compensation for helping ANY Polkie on ANYTHING since 2003. FACT. Everything I do is 100% F R E E in regards to membership.

    I tried very hard, really hard to explain my position yrs. ago in one sorry filled email but it feel on deaf ears. That's why after explaining my soul beliefs to you and got no reply or to go elseware for advice again. Then it was done.Over. 5/6 yrs.,Then came ChrisD to help take a look inside them...:)

    All is excellent now. No problem, Thanks again Mark, Good day
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • dorokusai
    dorokusai Posts: 25,577
    edited June 2010
    OK, I'll just have to forget about what I've already forgotten, which was probably 5 seconds after it happened. I'm still not sure what transpired but most certainly wouldn't hold a grudge or have any animosity towards you currently Tony. I apologize for my lack of understanding at that time and wish it had turned out on a more positive note.

    Anything you need from me would be willingly given and without anything but an open hand. I really wish you had not left and stuck around....passion about this hobby runs deep Tony and sometimes we just need to talk more, think less. I'm guilty of that as well but try to be more balanced as I progress or devolve....it could go either way I imagine. ha ha...oh and :)

    Good luck and happy listening.

    Regards,
    Mark
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
  • Tony M
    Tony M Posts: 11,192
    edited June 2010
    That's wonderful Mark. I appreciate that.
    I wish I had stayed to but I was working 12 to 14 hrs a day during those years so my time was occupied and it flew by rather fast. Case closed:D
    Most people just listen to music and watch movies. I EXPERIENCE them.