Group Buy '16: Dreadnought Avel Lindberg 1000VA Isolation Transformers

17810121317

Comments

  • F1nutF1nut Posts: 42,156
    You have to supply your own screws, washers and nuts, which should be 3mm.
    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."


  • agfrostagfrost Posts: 2,259
    Malbec wrote: »
    To mount them, you have to source your own. At least that's what I remember.

    Yes. Screws/washers/nuts.

    Don't forget about buying connectors to go from the transformer wires to the Neutrik chassis connector's spade tabs, unless you're planning on soldering them.
    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • heiney9heiney9 Posts: 24,093
    Thanks guys, see this is why I wanted a detailed write up. I had no idea we'd need these little things as I've never done one before. I don't happen to have some of this stuff around.

    Any other little tid bits you can remember
    "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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • agfrostagfrost Posts: 2,259
    edited January 2017
    Jesse's build thread was food for my planning. Picture shows the grouping of wires from the A-L transformer and the connectors Jesse (and I in his fashion) used to connect Xformer to Neutrik:

    http://forum.polkaudio.com/discussion/142058/a-slightly-different-take-on-the-dreadnought/p1

    Connector Needs:
    1) Stainless Steel Bolt/washers/lockwashers/nut(s)--for mounting transformer to case. Needs to be non-magnetic stainless.
    2) Screws/washers/nuts for fastening Neutrik connectors to case & speaker terminal cups

    Am I missing anything? Get 'em all on a single Fastenal order for one-shipping price.

    Heck--here's a screenshot of *my* Fastenal order. I strongly recommend vetting this against other build threads to check on stuff I haven't thought about in 3 years--like "is that bolt the right size?" I suspect it is, but do some extra homework before ordering what I'm currently 85% sure is what I installed...

    Screen%20Shot%202017-01-26%20at%204.24.19%20PM_zpsmyuuxevf.png

    Looks like I ordered extra parts (as I tend to when shipping is greater cost than the parts themselves). If I can locate them, I'll tally them up and see about putting up a Karma.
    Post edited by agfrost on
    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • agfrostagfrost Posts: 2,259
    edited January 2017
    ...I can see that I ended up purchasing both 3/8" & 5/16" bolts to test for my preferred fit--I'll see if I can ascertain which diameter "the loser" ended up being.

    Edit: Caliper appears to show I've got a pair of 3/8" bolts that I did *NOT* use, which would indicate I went with the 5/16". Can any past Dreadnought builder confirm this?
    Post edited by agfrost on
    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • heiney9heiney9 Posts: 24,093
    The transformer doesn't come with a mounting bolt or mounting plates? I bought a used 800vA from a member here a few years ago. Never used it and sold it. It had a mounting bolt and a lower plate.
    "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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • agfrostagfrost Posts: 2,259
    I'm laughing at how invested I am in this, since mine's been done for a couple years...

    I'm going to open mine up and get some answers....

    OK: I've taken a few (cellphone) photos which I hope are helpful.

    Here's just a shot of my opened case, freshly retrieved from in between my 2BTLs. Others have twisted the matched wires--looks like I did not.

    pu73vjo3p9lh.jpg

    A closeup of one of two wires-to-Neutrik connections. Colors are harder to make out on this pic, but (Blue/Violet) are paired as are (Brown/Grey). I crimped both into female connector (yellow plastic) and hit the connection with some Cardas QE solder to boot.

    yjfva62zekd2.jpg

    The other side. (Red/Yellow) and (Orange/Black). If you look at other builds you'll notice that I used different tabs on the Neutrik than suggested by Jesse (F1nut) and perhaps others--This is because of the choices I made on where to solder my wires into the 4-pole Neutrik NLT4FX-BAG connectors I used on my cables. You'll need to match *your* choices made in the cables. You need continuity from transformer wiring to Neutrik to SDA cable to Neutrik to your speaker's internal SDA connections (I'm assuming you're going Neutrik on both ends)--or no worky. With the female disconnects, it's easy to choose which tabs to connect inside the transformer case. You've clamped and/or soldered your SDA cables, so no choices there. If you're using 2-pole Neutrik, a bit less to ponder. The screw/nut you see is the hardware holding the Neutrik NL4MP-UC to the case. You have to drill two holes for each side.

    dk7tvsjhc3ma.jpg

    Just a quick shot to show the 'washer sandwich' I made. All stainless. Fender washer, lock washer, nut. On the outside of the case I threaded another fender washer on the bolt before starting it in the hole in the case that Larry thoughtfully predrilled. (He probably just bribed a robot laser to do it)

    s8ohtj27cocy.jpg

    The money shot, as it were: Proof that I used a 5/16" stainless bolt. No way is a 3/8" fitting in that hole (this transformer is potted through the middle).

    b7thx3w5ykoz.jpg

    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • heiney9heiney9 Posts: 24,093
    F1nut wrote: »
    Brock, do you want one of us to come and hold your hand?

    No Jesse, but Jay's tutorial and pics have been extremely helpful. That's the kind of thing we do around here. Help each other out, make suggestions, share experiences, etc.

    Sorry I've never built one before and many here have. I didn't think asking for advice was going to be such a pain in your azz.

    Thanks Jay, you've been extremely helpful. Now I don't have to order all these parts separately as I run into issues.

    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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • pitdogg2pitdogg2 Posts: 13,774
    Brock Autozone and Advanced auto have some very nice gold plated crimp on fast on's like Jay there used to attach wires to the Neutrik. go check them out
  • agfrostagfrost Posts: 2,259
    Please realize that I didn't do a single unique thing in my build--I just thought I'd transfer some of the practices I got from people who got in on group buy #1 (I was 2nd wave, the "scuba" one. Hmm. Wonder if he got in on this group buy?).

    Still worth your while to find/go through those older build threads (DK's, F1's). Most have used Dynamat in their cases. Still on the to-do list for me.

    Good job on all of this GB's participants: No one got banned this time!
    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • monepolkmonepolk Posts: 989
    Hey I appreciate all the info that you've provide. Thanks.
  • Hey @heiney9 isn't the ONLY one benefitting from all of this. He's just the one asking the questions. I've never done this before either and obviously we aren't alone in this.
    Living room Home theater: Upgrade Company modified Onkyo PR-SC5509,Sunfire Cinema grand Signature 5 channel amp(1st gen),Carver TFM-45,Carver M-400a,Panasonic TC-P50ST60 50" Plasma(last gen before Plasma production stopped)Pioneer Elite DVL-91,Meridian 519 Dolby AC-3 RF Demodulator,Oppo Digital UDP-205,TiVo Bolt VOX,Nakamich BX-300,Technics SL-1200MKII,Shure V15 Type VxMR cartridge,Polk SDA-SRS 3.1 TL(with RD-0198 tweeters, upgraded with Larry's rings, black hole5,an Avel-Lindberg 1000VA isolation transformer, VR3 customer crossovers and internal wiring),Polk CS-1000P(with SL-6506 tweeter),Polk Monitor 5jr(with RD-0194 tweeters),Polk RT-35i (1),Polk Mini Monitors,Polk PSW150(4)Monster Power HTPS 7000 MKII Signature series,Monster Power AVS 2000 Signature Series,Various MIT,Monster,Upgrade Company and Belden interconnect,power,HDMI,Coax and Toslink Digital and speaker cables.

    Bedroom 2 channel system:Integra DTM 40.4,Nakamichi BX-100,TiVo mini,Musical Fidelity X-LPS,X-PSU,Carver TFM-25,Sony KV-34XBR970(last of the widescreen tube sets before production stopped)Technics SL-1200MKII,Shure V15 Type V MR cartridge,Polk RT-55(with SL-6506 tweeters),Polk PSW-200 in plexiglass(2),Sony Playstation 3 slim.Monster Power HTPS-7000,Monster AVS-2000, PowerVarious Kimber,Audioquest and MIT interconnects and speaker cables.
  • DSkipDSkip Posts: 15,974
    Hey @heiney9 isn't the ONLY one benefitting from all of this. He's just the one asking the questions. I've never done this before either and obviously we aren't alone in this.

    Maybe Rick can pull one of his geetars out and we can all sing kumbaya while we hold hands. o:)
  • DSkip wrote: »
    Hey @heiney9 isn't the ONLY one benefitting from all of this. He's just the one asking the questions. I've never done this before either and obviously we aren't alone in this.

    Maybe Rick can pull one of his geetars out and we can all sing kumbaya while we hold hands. o:)

    Yippeekyay [email protected]$%&#:!!!! :D ;)
    Living room Home theater: Upgrade Company modified Onkyo PR-SC5509,Sunfire Cinema grand Signature 5 channel amp(1st gen),Carver TFM-45,Carver M-400a,Panasonic TC-P50ST60 50" Plasma(last gen before Plasma production stopped)Pioneer Elite DVL-91,Meridian 519 Dolby AC-3 RF Demodulator,Oppo Digital UDP-205,TiVo Bolt VOX,Nakamich BX-300,Technics SL-1200MKII,Shure V15 Type VxMR cartridge,Polk SDA-SRS 3.1 TL(with RD-0198 tweeters, upgraded with Larry's rings, black hole5,an Avel-Lindberg 1000VA isolation transformer, VR3 customer crossovers and internal wiring),Polk CS-1000P(with SL-6506 tweeter),Polk Monitor 5jr(with RD-0194 tweeters),Polk RT-35i (1),Polk Mini Monitors,Polk PSW150(4)Monster Power HTPS 7000 MKII Signature series,Monster Power AVS 2000 Signature Series,Various MIT,Monster,Upgrade Company and Belden interconnect,power,HDMI,Coax and Toslink Digital and speaker cables.

    Bedroom 2 channel system:Integra DTM 40.4,Nakamichi BX-100,TiVo mini,Musical Fidelity X-LPS,X-PSU,Carver TFM-25,Sony KV-34XBR970(last of the widescreen tube sets before production stopped)Technics SL-1200MKII,Shure V15 Type V MR cartridge,Polk RT-55(with SL-6506 tweeters),Polk PSW-200 in plexiglass(2),Sony Playstation 3 slim.Monster Power HTPS-7000,Monster AVS-2000, PowerVarious Kimber,Audioquest and MIT interconnects and speaker cables.
  • heiney9heiney9 Posts: 24,093
    edited January 2017
    Check out Performance Audio

    http://www.performanceaudio.com/

    They have all the Neutrik connectors and they have a very good price on Canare 4S11 cable if you haven't decided on what cabling to use with your Dreadnought. I have used Canare before and currently use it in my office rig. It's damn good stuff and many manufacturer's, whom I won't mention, use this exact cable and put sheathing over it w/their own name on it and mark it up 10-20 times.

    $49 or more spent = free shipping. I have bought from them before and they are solid.

    Just another alternative.

    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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • pitdogg2pitdogg2 Posts: 13,774
    edited January 2017
    heiney9 wrote: »
    Check out Performance Audio

    http://www.performanceaudio.com/

    H9

    Thats a great price Brock. I have used Have inc before as they also are one of the few that carry black and theirs is 1.38per foot.
    Thanks bookmarked your site

    http://store.haveinc.com/p-49380-canare-4s11-starquad-speaker-cable-14-awg-cut.aspx

  • heiney9heiney9 Posts: 24,093
    Just an FYI,

    Parts Express carries the Gold, insolated disconnects for the lugs on the Neutrik female connectors on the tranny case.

    http://www.parts-express.com/gold-12-10-awg-0187-female-disconnect-5-pair--095-808

    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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • MalbecMalbec Posts: 489
    I believe those disconnects are too small if you are going with the chassis connectors jay linked in his post (NL4MP-UC). They are .250" 1/4" tab.
  • pitdogg2pitdogg2 Posts: 13,774
    Malbec wrote: »
    I believe those disconnects are too small if you are going with the chassis connectors jay linked in his post (NL4MP-UC). They are .250" 1/4" tab.

    Although not insulated the car place I'm refering to i believe are 6-8 pak for a lot less. I used them to wire up my SDA's when i did the xo.
  • F1nutF1nut Posts: 42,156
    Too small Brock.
    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."


  • ken brydsonken brydson Posts: 7,466
    F1nut wrote: »
    Too small Brock.

    That's what she said.. o:)
    HT/Main- Panny 50" G10 Plasma, Pioneer SC-1222k AVR, Panny DMP-BD60 BDP, Polk LS90 mains, CS350LS center, LS/fx side surrounds, LS50 surround backs, SVS 25-31PC+ sub, Harmony One

    Office Rig- Marantz 2252B, Denon 2910, Kenwood KD2070 TT, Polk RTA 12B's/ RTA8t
  • machonemachone Posts: 1,117
    Madisound has gold plated fastons in several sizes including 1/4".
    Mojo Audio Illuminati v3>>Quantum Byte w/LMS>>Rpi/PiCoreplayer>> Starlight 7 USB >> Mojo Audio Mystique v2 SE>>ModWright SWL 9.0 SE Signature>>Hafler DH-500 Amp+ (Musical Concepts Fully Modded)>>
    SRS 2.3TL (Fully Modded)...SDA-1A (Fully Modded with Dimensional Tweeter Delete)
    1KVA Dreadnought
    Marantz SA 8005
    Pioneer PLX-1000 Turntable - Shure SC35C/N35X - V15III/VN35HE
    Yamaha TX-540 Tuner...Sony BDP-S570
    Sony PS4

    Separate subpanel with four dedicated 20 amp circuits.
    1. Amplification 2. Analog 3. Digital 4. Video

    "All THAT IS LOST FROM THE SOURCE IS LOST FOREVER"
  • heiney9heiney9 Posts: 24,093
    edited January 2017
    I was trying to link to Parts Express since they have everything in one vendor regarding the Neutrik stuff. The idea is to minimize shipping costs from multiple vendors.

    Too small Brock.

    The Gold fasten ons I linked to will fit these. Unless I'm reading it wrong?

    http://www.performanceaudio.com/item/neutrik-nl4mp-4-pole-speakon-panel-mount-connector/2798/

    4 pole chassis connector, black D-size flange, countersunk thru holes, 3/16" flat tabs

    Regardless they make other sizes depending on what you go with.
    "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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • F1nutF1nut Posts: 42,156
    That's not the NLT4FX-BAG, which takes .250 fastons.
    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."


  • edpot1edpot1 Posts: 4
    edited January 2017
    How does this look for a parts list? I'm leaving out the cables

    Neutrik Connectors on Case
    2x Neutrik Spekon Female Connector (Neutrik NL4MP-UC)
    2x Neutrik D-Size Sealing Gaskets (Neutrik SCDP-0)
    4x 1/4" 12-10 AWG Female Disconnect (NTE 76-FIFD12-250)
    4x M3-0.5 x 16mm Stainless Steel Machine Screw (Fastenal #XM2510016A20000)
    4x M3 DIN A4 Stainless Steel Split Lock Washer (Fastenal #ML6330000A40000)
    4x M3-0.5 Stainless Steel A4 Hex Nut (Fastenal #MN2510000A40000)

    Mounting Transformer to Case
    1x 5/16"-18 x 3-1/2" Stainless Steel Tap Bolt (Fastenal #71185)
    2x 5/16" x 1.250" Stainless Steel Fender Washer (Fastenal #0172789)
    1x 5/16" Stainless Steel Medium Split Lock Washer (Fastenal #71065)
    1x 5/16"-18 Stainless Steel Hex Nuts (Fastenal #70711)

    Thanks heiney9 for asking the tough questions
    Post edited by edpot1 on
  • agfrostagfrost Posts: 2,259
    I see you're only considering the case at this time, but remember you're installing Speakons *four* times (assuming you're doing so on the speakers as well).

    So Neutrik parts, including hardware would be doubled if you plan to use Neutrik NL4MP-UC also on the speakers.
    Jay
    SDA 2BTL * Musical Fidelity A5cr amp * Marantz DV-9500 * Modded Adcom GDA-600 DAC * Rythmik F8
    Micro Seiki DQ-50 * A hodgepodge of cabling * Belkin PF60
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
  • heiney9heiney9 Posts: 24,093
    edited January 2017
    Much appreciated edpot1. $3.41 in fasteners plus $9.61 in shipping seems kind of silly. I will probably go to my local hardware store to get the fasteners. Thanks for including the dimensions and not just the Fastenal part number.

    Thanks again Jay for sharing.

    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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • F1nutF1nut Posts: 42,156
    I will probably go to my local hardware store to get the fasteners.

    Good luck with that.
    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."


  • heiney9heiney9 Posts: 24,093
    edited January 2017
    They are just down the street and have a separate wing dedicated to fasteners. I have zero doubt I can find what I need now that I have an idea of what I'm working with.

    Why so combative and negative in this thread?

    H9

    P.s. Also there is a Fastenal branch minutes from work, but they don't stock all the stuff listed.
    "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 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!