4.1TL Modification for 1989 version SDA CRS+

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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    Camera's ready. Cheap pencil iron's ready. I'm ready. Just need Mr. UPS dude to HOOK ME UP!!!!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited January 2008
    Carl brought up a good point about desoldering. I use a desoldering iron that has a suction bulb attached that can suck away melted solder. Makes things a lot easier.
    Proud and loyal citizen of the Digital Domain and Solid State Country!
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  • MillerLiteScott
    MillerLiteScott Posts: 2,561
    edited January 2008
    Jesse and I used a de soldering bulb to suck the solder away to remove the caps and resisters and the some copper de soldering braid to clean up an extra solder.

    Sounds romantic doesn't it.:rolleyes:
    I like speakers that are bigger than a small refrigerator but smaller than a big refrigerator:D
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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    I've got desoldering braid and a suction bulb. So...

    Carmera is ready. Cheap pencil iron is ready. Desoldering braid is ready. Solder sucker is ready. Forgot to mention that the SPEAKERS ARE READY. Also forgot to mention that 18g solid copper for jumper and lead extender is ready. Alligator clip for heat sink is ready. I'm ready. JUST NEED MR. UPS DUDE TO HOOK ME UP!!!!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    Actually, I have another question while I have the attention of all the solder gurus, sorry for crapping the thread.

    I've got an NAD 2200 amp and an NAD 1700 preamp. Great 20-year oldish gear. I'm interested in replacing the stock power cords (polarized 2-blade, probably 18g wire) with some beefy new power cables. I was checking out the IEC stuff at sonic craft. I don't the gear is worthy about going nuts, I'm not looking to spend more on the power cord than I did on the amp...

    The Furutech Inlet seems reasonably priced to mount on the amp, with a bit of Dremel work:

    http://www.soniccraft.com/products/connections/ac/socket/iec/furutech_inlet.htm

    Just wondering what the guidelines are for converting from 2-blade polarized to a grounded wire? Where do I attach the ground to inside the amp? Just to the chassis? How would I know which pole should go to which side on the IEC connector.

    Again, sorry for crapping the thread, happy to start another if you all would prefer.

    Thanks...
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    schwarcw and DarqueNight - a quick thanks on the desoldering tip. I'm going to start up a new thread for my TL upgrade, and I'll post plenty of pictures, but I already got started even though my Sonicaps haven't arrived yet, figured I'd get done whatever I could over the weekend to save some time when the caps arrive. I went on a little shopping spree in Radio Shack, and immediately saw the usefulness of a desoldering iron, especially for $10.99. I'm going to start up a new thread for my TL upgrade, and I'll post plenty of pictures, but I already got started even though my Sonicaps haven't arrived yet. Doing one XO at a time so my template remains intact, I used it to desolder the first XO, and the benefits of using a desoldering iron are incredibly obvious. Thanks for the advice!!!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    nspindel wrote: »
    I've got desoldering braid and a suction bulb. So...

    Carmera is ready. Cheap pencil iron is ready. Desoldering braid is ready. Solder sucker is ready. Forgot to mention that the SPEAKERS ARE READY. Also forgot to mention that 18g solid copper for jumper and lead extender is ready. Alligator clip for heat sink is ready. I'm ready. JUST NEED MR. UPS DUDE TO HOOK ME UP!!!!

    My RD0198's and all the goodies from Sonic Craft arrived today. Woo hoo! Also ordered new inductors from Parts Express, those should arrive tomorrow.

    I don't have a huge amount of time to work on this stuff during the week (gotta pay for this stuff!), but I'll do a bit in the evenings, and then probably have a very busy weekend.

    I'm going to start up a new thread with all of my mods, with lots of pictures. Stay tuned for the arrival of the newest set of SDA-2B TL's....

    Man these sonicaps are BIG!!! The 30uF is a monster.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    edited January 2008
    If you haven't seen my new thread:

    http://www.polkaudio.com/forums/showthread.php?t=62106
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • Conradicles
    Conradicles Posts: 6,138
    edited August 2010
    DarqueKnight wrote: »
    Jesse,

    Did you experience an improvement in bass response when you did your 4.1TL mod?
    F1nut wrote: »
    Yes, quite a bit actually.

    That is good to hear.:cool:
    Do you think it had anything to do with putting quality caps on the 40uf value capacitor?
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  • F1nut
    F1nut Posts: 50,760
    edited August 2010
    Conradicles wrote: »
    That is good to hear.:cool:
    Do you think it had anything to do with putting quality caps on the 40uf value capacitor?

    You know, a lot of folks say that it doesn't matter much what caps you use for the shunt circuit. I disagree, so the answer to your question is yes.

    Larry's rings also make a huge improvement to the bass response.
    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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  • Face
    Face Posts: 14,340
    edited August 2010
    Shunt caps can definitely make a difference.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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