Buy Direct M-F 9am - 10:30pm EST 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 19 of 19
  1. 02-01-2013 09:59 PM #1
    Drenis
    Drenis is offline

    Member Sales Rating: (0)
    Join Date
    Aug 2011
    Location
    A place called Winnipeg
    Posts
    2,680
    Send a message via MSN to Drenis

    Default AI-1 1000va Questions

    Curious what bolt you members used to secure your transformer to one of Larry's cases?

    I'll be putting mine together soon.

    Also, is there mention somewhere regarding how to properly wire the transformer?

    Thanks
    Reply With Quote Reply With Quote
  2. 02-01-2013 10:11 PM #2
    thsmith
    thsmith is offline

    Member Sales Rating: (22)
    Join Date
    Oct 2008
    Location
    Directly over the center of the earth in Olathe Kansas
    Posts
    5,569

    Default

    the schematic is on DKs page, let me take a look.\

    http://www.polkaudio.com/forums/show...VA-Transformer
    Last edited by thsmith; 02-01-2013 at 10:21 PM.
    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

    Ofc: Wright WLA12 preamp: Anthem Amp 1 PSVANE 6CA7: Pio Elite DV-79AVI: Airport Express: PA LS90 sonicaps and mills
    Reply With Quote Reply With Quote
  3. 02-02-2013 03:48 AM #3
    F1nut
    F1nut is offline

    Member Sales Rating: (13)
    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    27,634

    Default

    Use non-magnetic hardware, I used stainless steel.

    Yellow/Red - right pin
    Black/Orange - right blade
    Grey/Brown - left pin
    Blue/Violet - left blade
    '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 turd by the clean end."
    Reply With Quote Reply With Quote
  4. 02-02-2013 09:42 AM #4
    heiney9
    heiney9 is offline

    Member Sales Rating: (16)
    Join Date
    Mar 2005
    Location
    In A Van Down By The River
    Posts
    20,706

    Default

    I have a question. My SDA 1C's were originally pin/blade and the IC has been modified by using a banana plug and a Vampire input jack so the blade side is no longer hooked up. Can I just run the appropriate connection from each side of the transformer to the negative speaker terminal? That achieves the same effect as changing the IC connector and re-wiring internally, correct?

    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 Aleph 30; Adcom GFP750/Dared SL2000A; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!
    Reply With Quote Reply With Quote
  5. 02-02-2013 09:59 AM #5
    Drenis
    Drenis is offline

    Member Sales Rating: (0)
    Join Date
    Aug 2011
    Location
    A place called Winnipeg
    Posts
    2,680
    Send a message via MSN to Drenis

    Default

    Quote Originally Posted by thsmith View Post
    the schematic is on DKs page, let me take a look.\

    http://www.polkaudio.com/forums/show...VA-Transformer
    Thanks for that link. I did look on there but may have missed it. Evidently again as I just checked. That's what semi prompted my post.

    Quote Originally Posted by F1nut View Post
    Use non-magnetic hardware, I used stainless steel.

    Yellow/Red - right pin
    Black/Orange - right blade
    Grey/Brown - left pin
    Blue/Violet - left blade
    Thanks!!!!

    Exactly what I was looking for. And good tip on the stainless hardware.
    Reply With Quote Reply With Quote
  6. 02-02-2013 10:00 AM #6
    Toolfan66
    Toolfan66 is offline

    Member Sales Rating: (49)
    Join Date
    Jan 2009
    Location
    In Hell
    Posts
    10,263

    Default

    Correct!!
    Jesse For President!!!

    cnh for Vice President ..

    Trey for Polkie of the year!!
    Reply With Quote Reply With Quote
  7. 02-02-2013 11:28 AM #7
    thsmith
    thsmith is offline

    Member Sales Rating: (22)
    Join Date
    Oct 2008
    Location
    Directly over the center of the earth in Olathe Kansas
    Posts
    5,569

    Default

    Quote Originally Posted by heiney9 View Post
    I have a question. My SDA 1C's were originally pin/blade and the IC has been modified by using a banana plug and a Vampire input jack so the blade side is no longer hooked up. Can I just run the appropriate connection from each side of the transformer to the negative speaker terminal? That achieves the same effect as changing the IC connector and re-wiring internally, correct?

    H9
    If I understand correctly, that is what I did as i had went to cardas BP for my IC cable.
    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

    Ofc: Wright WLA12 preamp: Anthem Amp 1 PSVANE 6CA7: Pio Elite DV-79AVI: Airport Express: PA LS90 sonicaps and mills
    Reply With Quote Reply With Quote
  8. 02-02-2013 11:03 PM #8
    drumminman
    drumminman is offline

    Member Sales Rating: (0)
    Join Date
    Dec 2010
    Location
    Central NC
    Posts
    1,560

    Default

    I had a tough time finding the proper size stainless steel bolt when I was assembling mine. I finally found one at a marine hardware store on the coast, but probably any good size place that sells boats, etc. would have a good selection.

    Re: connecting the "blade" part of the SDA cable to the negative speaker terminal, that's what I did too. Works great!
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer
    Reply With Quote Reply With Quote
  9. 02-03-2013 11:54 AM #9
    Drenis
    Drenis is offline

    Member Sales Rating: (0)
    Join Date
    Aug 2011
    Location
    A place called Winnipeg
    Posts
    2,680
    Send a message via MSN to Drenis

    Default

    Quote Originally Posted by drumminman View Post
    I had a tough time finding the proper size stainless steel bolt when I was assembling mine. I finally found one at a marine hardware store on the coast, but probably any good size place that sells boats, etc. would have a good selection.

    Re: connecting the "blade" part of the SDA cable to the negative speaker terminal, that's what I did too. Works great!
    Marine? Boats? Woah... I was just going to go to my local Home Depot/lumber store to find something.

    What size of bolt did you use?
    Reply With Quote Reply With Quote
  10. 02-04-2013 02:56 AM #10
    F1nut
    F1nut is offline

    Member Sales Rating: (13)
    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    27,634

    Default

    Home Depot doesn't have stainless steel bolts. I got mine at the local Ace Hardware. The size I used was 5/16-18 x 3.5 inches.
    '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 turd by the clean end."
    Reply With Quote Reply With Quote
  11. 02-04-2013 07:01 AM #11
    nspindel
    nspindel is offline

    Member Sales Rating: (14)
    Join Date
    Mar 2005
    Posts
    3,334

    Default

    Don't recall the size, I just matched the size of the bolt that came with the 800va transformer. Got stainless steel from the local hardware store.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
    Reply With Quote Reply With Quote
  12. 02-04-2013 12:47 PM #12
    Moose68Bash
    Moose68Bash is offline

    Member Sales Rating: (0)
    Join Date
    Jan 2012
    Location
    North Hampton, NH
    Posts
    446

    Default Question re non-magnetic bolts for Dreadnoughts

    Quote Originally Posted by F1nut View Post
    Use non-magnetic hardware, I used stainless steel.
    F1Nut,

    What are the consequences or drawbacks to using a standard bolt? I have two boxes assembled, and I used standard (Home Depot) bolts in both.

    Do I need to change them out ASAP?

    I can access SS hardware from Jamestown Distributors on the Internet, if it isn't available in a local hardware or marine supply store.
    Last edited by Moose68Bash; 02-04-2013 at 12:49 PM.
    Reply With Quote Reply With Quote
  13. 02-04-2013 01:33 PM #13
    F1nut
    F1nut is offline

    Member Sales Rating: (13)
    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    27,634

    Default

    The magnetic field would most likely be affected by steel hardware.
    '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 turd by the clean end."
    Reply With Quote Reply With Quote
  14. 02-04-2013 02:12 PM #14
    pitdogg2
    pitdogg2 is offline

    Member Sales Rating: (1)
    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    1,937
    Send a message via AIM to pitdogg2 Send a message via Yahoo to pitdogg2

    Default

    Quote Originally Posted by F1nut View Post
    Home Depot doesn't have stainless steel bolts. I got mine at the local Ace Hardware. The size I used was 5/16-18 x 3.5 inches.
    Also not all Stainless is non-magnetic so check with a magnet. Most stainless made overseas IS magnetic. so double check.
    Reply With Quote Reply With Quote
  15. 02-04-2013 04:27 PM #15
    drumminman
    drumminman is offline

    Member Sales Rating: (0)
    Join Date
    Dec 2010
    Location
    Central NC
    Posts
    1,560

    Default

    Quote Originally Posted by pitdogg2 View Post
    Also not all Stainless is non-magnetic so check with a magnet. Most stainless made overseas IS magnetic. so double check.
    I took a refrigerator magnet to the hardware store - guarantees you buy the correct SS bolt
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer
    Reply With Quote Reply With Quote
  16. 02-04-2013 04:30 PM #16
    drumminman
    drumminman is offline

    Member Sales Rating: (0)
    Join Date
    Dec 2010
    Location
    Central NC
    Posts
    1,560

    Default

    Quote Originally Posted by pitdogg2 View Post
    Also not all Stainless is non-magnetic so check with a magnet. Most stainless made overseas IS magnetic. so double check.
    I took a refrigerator magnet to the hardware store - guarantees you buy the correct SS bolt

    From a quick google search non magnetic SS formulations includes 18-8 (most variations), 304 & 316.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer
    Reply With Quote Reply With Quote
  17. 02-04-2013 07:57 PM #17
    Toolfan66
    Toolfan66 is offline

    Member Sales Rating: (49)
    Join Date
    Jan 2009
    Location
    In Hell
    Posts
    10,263

    Default

    Aluminum bolts 3/8-16

    I drilled out the center hub of the transformer. Not going to hurt it any..
    Jesse For President!!!

    cnh for Vice President ..

    Trey for Polkie of the year!!
    Reply With Quote Reply With Quote
  18. 02-04-2013 08:26 PM #18
    Drenis
    Drenis is offline

    Member Sales Rating: (0)
    Join Date
    Aug 2011
    Location
    A place called Winnipeg
    Posts
    2,680
    Send a message via MSN to Drenis

    Default

    Quote Originally Posted by F1nut View Post
    Home Depot doesn't have stainless steel bolts. I got mine at the local Ace Hardware. The size I used was 5/16-18 x 3.5 inches.
    Different selection in our stores. However, there are lots of places to go for hardware.

    Thanks for listing bolt size guys. Fridge magnet is a great tip...
    Reply With Quote Reply With Quote
  19. 02-04-2013 10:58 PM #19
    Moose68Bash
    Moose68Bash is offline

    Member Sales Rating: (0)
    Join Date
    Jan 2012
    Location
    North Hampton, NH
    Posts
    446

    Default

    Just ordered stainless steel (18/8) bolts, nuts and washers from <www.boltdepot.com>.

    They have a great selection of all sorts of fasteners, and its less expensive than driving 15 miles to the nearest REAL hardware store.
    Family Room
    Cambridge Audio Azur 840C CD Player, King Cobra XLRs
    Perreaux SM6P MKII Preamp, King Cobra XLRs
    Perreaux Prisma 750 Amps, Morrow SP7 Cables
    SDA SRS 1.2as (RD0194s, Dreadnought, Black Hole 5, Acousta-Stuf, Dynamat Extreme, JBWeld. Vr3 Mods: Xovers & Binding Post Cups, SDA Inductors & Interconnect Cables)

    Exercise Room
    Wadia 171i, Supernova 6 Glass Toslink
    CA Azur 840C, AQ King Cobra RCAs
    Perreaux SM6P Preamp, AQ King Cobra RCAs
    Perreaux PMF3150 Amp, Dreadnought
    SDA 1Cs
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. The AI-1 Dreadnought Project Pt.2 - Upgrade to 1000VA Transformer
    By DarqueKnight in forum Vintage Speakers
    Replies: 209
    Last Post: 03-24-2013, 02:44 AM
  2. SOLD Plitron 1000VA and brand new Tool enclosure
    By thsmith in forum For Sale (FS) Classifieds
    Replies: 9
    Last Post: 02-03-2013, 08:58 AM
  3. Wanted Avel Lindberg AV-047548 1000VA isolation transformer
    By Toolfan66 in forum Wanted (WTB) Classifieds
    Replies: 12
    Last Post: 01-26-2013, 11:32 AM
  4. OK, let's hear everybody's impressions on their A-L 1000VA AI-1
    By drumminman in forum DIY, Mods & Tweaks
    Replies: 10
    Last Post: 10-04-2012, 01:32 PM
  5. Plitron 1000VA Transformer Evaluation
    By DarqueKnight in forum Vintage Speakers
    Replies: 8
    Last Post: 04-10-2012, 01:38 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules