SDA-1c crossover update....

nooshinjohn
nooshinjohn Posts: 25,461
edited March 2009 in Vintage Speakers
I have gone over several pages of threads and cannot find one regarding the parts needed to upgrade the crossovers for the SDA-1c. I would like to use the best stuff available, and also go thru the wiring as well, upgrading to higher quality wires...
any inputs for this or should I just shoot them to B:Den
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
Post edited by nooshinjohn on
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  • Face
    Face Posts: 14,340
    edited March 2009
    http://www.polkaudio.com/forums/attachment.php?attachmentid=31012&d=1201824729

    Best stuff available...here you go: http://www.duelundaudio.com/
    "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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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    thanks for the quick response... my trouble though is that I do not have a clue as to what should be replaced on the boards... when it comes to reading the schematic, I just dont understand what all the stuff is, or what the proper name is for any of it. I also do not know what new values are being applied during the upgrade process....
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • Face
    Face Posts: 14,340
    edited March 2009
    Per speaker:
    1 high quality 12uf film cap
    1 high quality 4.4uf film cap
    1 20uf film cap
    1 40uf film cap
    2 7.5ohm resistor
    1 2.7ohm resistor

    Can you solder? What's your budget?
    "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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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    yes I can solder and the budget is somewhat open at this point....
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • Face
    Face Posts: 14,340
    edited March 2009
    Open budget?

    12uf: http://www.madisound.com/catalog/product_info.php?cPath=404_5_351_413&products_id=8378
    4.4(3)uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-419
    20uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-252
    40uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-260

    Resistors are available from Sonic Craft or Parts Connexion.
    "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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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    lol... that top one was funny!!!
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • Face
    Face Posts: 14,340
    edited March 2009
    nooshinjohn wrote: »
    lol... that top one was funny!!!
    Hey, you said open budget. :D

    For the 12uf and 4.4uf I would source them from here: http://soniccraft.com/sonicaps.htm As I mentioned above, Sonic Craft will also have the resistors you need.

    For the 20uf and 40uf, those Daytons are fine.

    If you don't have one already, pick up a hot glue gun to secure the caps to the board, just don't go overboard.

    What do you use to drive your 1C's? If you're using a good amp, you can bypass the poly switches.
    "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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  • ben62670
    ben62670 Posts: 15,969
    edited March 2009
    Face wrote: »
    Open budget?

    12uf: http://www.madisound.com/catalog/product_info.php?cPath=404_5_351_413&products_id=8378
    4.4(3)uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-419
    20uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-252
    40uf: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=027-260

    Resistors are available from Sonic Craft or Parts Connexion.

    Hey if you buy 10 you can save some coin:)

    Yes bypass the Poly Switches if you have some self control.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    self control... is that not having to get up in the middle of the nite to make a pit stop, or is that keeping the volume down a bit? If its the latter I am screwed
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • thsmith
    thsmith Posts: 6,082
    edited March 2009
    Nooshinjohn, How about documenting and taking pics along the way. Maybe I could follow in your digital dust:D
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    Face wrote: »
    Hey, you said open budget. :D

    For the 12uf and 4.4uf I would source them from here: http://soniccraft.com/sonicaps.htm As I mentioned above, Sonic Craft will also have the resistors you need.

    For the 20uf and 40uf, those Daytons are fine.

    If you don't have one already, pick up a hot glue gun to secure the caps to the board, just don't go overboard.

    What do you use to drive your 1C's? If you're using a good amp, you can bypass the poly switches.


    Carver TFM-35 for now but am looking for better currently. I like the Rotel tha is listed but am in love with the Sunfire sig7x400:p

    will deleting the polyswitches improve the sound?:confused:
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    thsmith wrote: »
    Nooshinjohn, How about documenting and taking pics along the way. Maybe I could follow in your digital dust:D

    You mean the thermonuclear blast that will anhialate life on earth!!!:D:p

    I have confidence in lots of things, but this task gives ma a certain amount of trepidation....:p:eek:
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    nooshinjohn wrote: »
    You mean the thermonuclear blast that will anhialate life on earth!!!:D:p

    I have confidence in lots of things, but this task gives ma a certain amount of trepidation....:p:eek:
    I will be happy to do so:D

    Maybe a sticky should be created to document upgrades for all speakers?
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    :DI found this ancient thread... Thanks Darquenight!!!

    An honor to follow in your path:D

    https://shop.polkaudio.com/forums/showthread.php?t=47379
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • thsmith
    thsmith Posts: 6,082
    edited March 2009
    I will if you will. We could do a coordinated effort and see how it goes. I wanted Ben to do mine but just can't afford it right now but I do know how to solder and use to be able to read schematics.

    Where you located ?
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
    · Share on FacebookShare on Twitter
  • Marty913
    Marty913 Posts: 760
    edited March 2009
    nooshinjohn wrote: »
    self control... is that not having to get up in the middle of the nite to make a pit stop, or is that keeping the volume down a bit? If its the latter I am screwed

    If you truly cannot keep the volume down, maybe leaving the poly's in and replacing them might be safer.
    Sony 60'' SXRD 1080p
    Amp = Carver AV-705THX 5-Channel
    Processor = NAD T747
    Panasonic BD35 Blu-Ray
    Main = SDA-1C Studio with RD0s, spikes, XO rebuild, rings, I/C upgrade
    Center=Polk CS10, Surround = Athena Dipoles, Sub= Boston 12HO
    Music/Video Streaming = Netgear NEO550
    TT = Audio Technica
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  • ben62670
    ben62670 Posts: 15,969
    edited March 2009
    thsmith wrote: »
    I will if you will. We could do a coordinated effort and see how it goes. I wanted Ben to do mine but just can't afford it right now but I do know how to solder and use to be able to read schematics.

    Where you located ?

    If you can't afford me I feel for ya:p If you are comfortable soldering there is plenty of help here. Best advice is do one at a time. Also don't cut any of the leads off till everything is fitted.
    Enjoy
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • Face
    Face Posts: 14,340
    edited March 2009
    And don't forget: http://www.madisound.com/catalog/product_info.php?cPath=404_5_351_413&products_id=8378 :D
    "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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  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    Face wrote: »
    And don't forget: http://www.madisound.com/catalog/product_info.php?cPath=404_5_351_413&products_id=8378 :D



    a gift for me? THANKS!
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
    · Share on FacebookShare on Twitter
  • nooshinjohn
    nooshinjohn Posts: 25,461
    edited March 2009
    ben62670 wrote: »
    If you can't afford me I feel for ya:p If you are comfortable soldering there is plenty of help here. Best advice is do one at a time. Also don't cut any of the leads off till everything is fitted.
    Enjoy
    Ben


    I guess you ain't a cheep date?:p
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
    · Share on FacebookShare on Twitter