SDA 1c Mod Thread

24

Comments

  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Another tease
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    Hang on, I thought there weren't replacements for the 1C boards?
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    There is for the SINGLE board 1c, not the dual board
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    What's the difference? If you built one of those boards for dual-board 1C's, why couldn't you use it?
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Thats an excellent question...

    The one I am working on right now is a single board - I have just seen on the forums that dual boards are a no-no with the GIMPOD boards, maybe Anthony can chime in?
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    I don't get it - there's only one schematic posted in the vintage speakers section for 1C's. Far as I know, all 1C's used two 6510's, two 6511's, and two SL-2000's. They may have had different board configurations depending on models, but is the XO circuit different in any way between the two? Surely there must be a way for this to work.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    It may work...

    Not sure... Will shoot Anthony an email! :)
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • gimpod
    gimpod Posts: 1,793
    edited August 2012
    nspindel wrote: »
    I don't get it - there's only one schematic posted in the vintage speakers section for 1C's. Far as I know, all 1C's used two 6510's, two 6511's, and two SL-2000's. They may have had different board configurations depending on models, but is the XO circuit different in any way between the two? Surely there must be a way for this to work.
    VR3 wrote: »
    It may work...

    Not sure... Will shoot Anthony an email! :)
    Trey got your email and will try and answer it here.

    Yes you can use my boards on the early dual board 1C's they use the same components as the single board 1C's.
    Fellow member JayCee asked the same question and seeing how I had a set of the dual and single board crossovers for the 1C's as backups I was able to compare the two and electrically there the same. Now there is a caveat, the 1.25 mH inductors has the wire coming out the side instead of the end so move those to fit. Here's some pics that label the inductors and wires also a schematic.

    Polk%20SDA%201C%20XOs_1.jpg

    The wire for the SDA cable go's to P1 INPUT pin 1.

    Polk%20SDA%201C%20XOs_2.jpg

    Hope this helps, If you have anymore questions just ask here or shoot me a PM.
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    Or just replace that inductor with a Jantzen :lol:

    Thanks Tony, you're the man. I'm not actually planning on touching the 1C's, I'm selling them to a friend at work as soon as my CRS+'s are ready for prime time. But he's a solder geek himself, likely interested in being a gimpod customer!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • gimpod
    gimpod Posts: 1,793
    edited August 2012
    nspindel wrote: »
    Or just replace that inductor with a Jantzen :lol:

    Thanks Tony, you're the man. I'm not actually planning on touching the 1C's, I'm selling them to a friend at work as soon as my CRS+'s are ready for prime time. But he's a solder geek himself, likely interested in being a gimpod customer!

    Your welcome, as a matter of fact I'm thinking going the Jantzen/Solen inductor route myself but need to to do more research on doing so as nobody's been down this road on the 1C's before. The 1C's use 22 gauge wire for the 2.5 mH & 1.25 mH inductors where the CRS+, 2B uses 20 gauge and the 2.3 & 1.2 non-TL's use a 2.5 mH 22 gauge and a 1.25 mH 18 gauge, different gauge wire different DCR.
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    Ahhhhhh. Hadn't spotted that. You're good, dude! I was just reading the Henry measurement on the schematic, I didn't spot the gauge difference.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • Malbec
    Malbec Posts: 554
    edited August 2012
    http://www.jantzen-audio.com/download/coils/Wire%20Coils%20List%20%2004%2006%202008.pdf
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  • Malbec
    Malbec Posts: 554
    edited August 2012
    A big thank you for verifying this Tony. I bought a couple sets of your boards during the first run with the intention of converting my dual board 1c's to a single board.
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    That's the list you want. Doesn't look like there a 22 gauge 1.25mH, but there is a 22 gauge 2.5mH. Not sure if they'll do custom windings, but if they will, I smell a group buy in the works. Very thankful that they have direct replacements for the CRS+ coils. Mine arrived the other day. I'm now four Dueland resistors away from final XO assembly.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • Malbec
    Malbec Posts: 554
    edited August 2012
    According to their homepage they will do special request OEM.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    They will do special orders but it takes 4-8 weeks
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • factorz
    factorz Posts: 353
    edited August 2012
    I think I might have a pair of empty 1C cabinets that could use these :cheesygrin:
    VR3 wrote: »
    Another tease
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
    VR3 wrote: »
    They will do special orders but it takes 4-8 weeks

    It took about five weeks for me to get mine, and they were regular cataloged parts.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • gimpod
    gimpod Posts: 1,793
    edited August 2012
    VR3 wrote: »
    They will do special orders but it takes 4-8 weeks

    Jantzen Audio is in Denmark and they won't do custom wound inductors, I think they might if you are a company (OEM) and ordered a boat load (1000+). Most places (Parts Express, Parts connection, etc.) don't stock the values needed for the SDA's so they order them from Jantzen and yes it can take 4 - 8 weeks to get stocked parts from Denmark.
    nspindel wrote: »
    It took about five weeks for me to get mine, and they were regular cataloged parts.

    Exactly, If they (Jantzen) don't stock the value you need then you'll need to order a larger mH inductor of the same gauge wire and unwind it to the proper mH & DCR.
    “The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    NL2 connection... nice and clean install!
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Testing testing testing

    This is what your speakers look like on drugs and yes I know the left speaker woofers are oriented wrong thank you ;)

    Yesterday I ordered 16 midbass drivers and 8 tweeters so I can accurately test all sizes of SDA....

    Thats right, I have lost my marbles

    Have a nice day!
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • pitdogg2
    pitdogg2 Posts: 25,571
    edited August 2012
    VR3 wrote: »
    Testing testing testin

    Yesterday I ordered 16 midbass drivers and 8 tweeters so I can accurately test all sizes of SDA....

    Thats right, I'm rich bheeitch....

    Have a nice day!


    XO upgrading been berry berry good to meee.




    :mrgreen::eek::cheesygrin:
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  • Conradicles
    Conradicles Posts: 6,092
    edited August 2012
    VR3 wrote: »
    NL2 connection... nice and clean install!

    I REALLY like that!
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    I ordered CHEAP drivers with the ohmage as Polk drivers.... Total was like 50 bucks shipped

    I aint rich fool! :-P

    NL2 is AWESOME
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • pitdogg2
    pitdogg2 Posts: 25,571
    edited August 2012
    Just gigging you a little Trey.:razz::razz:

    yep when i seen that post the first that came to mind was jeesh that is a LOT of drivers @ 50.00ea....then i thought of your neighbors wondering where all the marbles came from????
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Hahaha yeah...

    Sorry folks, we will be experiencing a slight price increase here soon due to... unforeseen circumstances ;)

    Haha, too funny! That would be a chunk of change right there
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • F1nut
    F1nut Posts: 50,649
    edited August 2012
    VR3 wrote: »
    NL2 connection... nice and clean install!

    You liked my idea, eh?
    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

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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Your idea is solid... NL2 is suhweet

    And check your email!
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 28,746
    edited August 2012
    Scratch that - just received it!

    Thanks
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • factorz
    factorz Posts: 353
    edited August 2012
    Well I was hoping to have some updated pictures for everyone, but I missed the FedEx guy today so I guess I wait. No biggie as I wouldn't have been able to do anything till this weekend anyway.

    Trey I haven't forgot about the shipping difference. I will send that out on Monday.
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