2B's Más Huevos

stainless0steel2stainless0steel2 Posts: 151
edited October 2017 in Vintage Speakers
Yep it's finally time to upgrade the innards of my 2B's, as well as some other mods...stay tuned.
715rn23a5ck7.jpg
u5irev1s3ptq.jpg
The Night is Dark and Full of Terrors
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Comments

  • hochpt21hochpt21 Posts: 5,035
    Wow, nice looking setup!
    __________________________________________________
    2 Channel
    Turntable - VPI Scout 1.1/Ortofon 2M Blue
    Integrated Amplifier - Rogue Audio Cronus Magnum II
    Speakers - GoldenEar Triton 2
    __________________________________________________
    7.1 Home Theater
    Denon AVR-X3300W; Rotel RMB-1066; Polk CS350ls, LS90's, FXi3's, RC60i; SVS PC Ultra; BenQ W1070; Elite Screens 120"
    __________________________________________________
    Man Cave
    Turntable - 1) Pro-Ject 2.9 Wood/Grado Gold; 2) Sony PS LX410/Grado Green
    Phono Stage - PS Audio GCPH, Parks Audio Budgie; CD - Marantz DV4001
    Preamp - Dared SL2000a, Luminous Audio Axiom II; Amplifier - Parasound HCA-1500A
    Speakers - SDA 2A (x-overs etc...); Epos Epic 2; Polk Audio Monitor 70 (my first)
    __________________________________________________
  • xschopxschop Posts: 854
    I like the crimson color. Let us know how low sax, strings and pianos sound after the upgrade.
  • pitdogg2pitdogg2 Posts: 10,555
    Nice Brian
  • monepolkmonepolk Posts: 850
    Looks like you're all set.
  • BlueMDPickerBlueMDPicker Old Polk Posts: 6,983
    ¡Eso parece toda la enchilada! ¡Disfrutar!


  • TNTsTunesTNTsTunes Posts: 754
    Yep it's finally time to upgrade the innards of my 2B's, as well as some other mods...stay tuned.
    715rn23a5ck7.jpg
    u5irev1s3ptq.jpg

    Aren't the inductors supposed to be mounted at opposing directions??? I believe so.
    "Make a man a fire and he'll be warm for a day. Light
    a man on fire and he'll be warm for the rest of his life."

  • ^^Sound reasoning. Thanks!
    em67g1pxr9yn.jpg
    The Night is Dark and Full of Terrors
  • Mike ReeterMike Reeter Posts: 3,273
    edited October 2017
    Brian, Are you performing the TL Upgrade? Never mind, I see the RDO-198 tweeter boxes after a second look.

    Where do you come up with the Replacement Inductors?
    SDA SRS 3.1TL's/SDA CRS+4.1TL's and some other stuff
  • stainless0steel2stainless0steel2 Posts: 151
    edited October 2017
    The small ones on the board I got from PartsExpress and Madisound. And I bought the 16mh off of Larry a few months back. But he got them from here.
    http://www.northcreekmusic.com/Inductors/inductors.html
    The Night is Dark and Full of Terrors
  • Mike ReeterMike Reeter Posts: 3,273
    The small ones on the board I got from PartsExpress and Madisound. And I bought the 16mh off of Larry a few months back. But he got them from here.
    http://www.northcreekmusic.com/Inductors/inductors.html

    Thanks! Your set-up and your 2B's look fabulous, I'm sure will sound as good as they look when the new x-overs and parts have some time on them.

    N'joy!!!

    SDA SRS 3.1TL's/SDA CRS+4.1TL's and some other stuff
  • gimpodgimpod Posts: 1,747
    I really hate to tell you but your using the wrong inductors, The DCR is to low and the wire gauge (AWG) looks to big.

    This is what you should have special ordered from PartsExpress

    0.40 mH, 22 AWG, Part No. 1489,
    1.25 mH, 20 AWG, Part No. 1137,
    2.50 mH, 20 AWG, Part No. 1695,

    Here's some link's to read on inductor replacement.

    forum.polkaudio.com/discussion/138234/inductor-dcr-insanity-for-sdas/p1

    forum.polkaudio.com/discussion/132437/upgrade-high-frequency-inductors-for-the-sda-srs-1-2tl/p1

    Sorry. :disappointed:
    "If you design software that any moron can use only morons will use it." JMO
    ---
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    Unfortunately for most of us we only get to experience the first day and then we can't even remember it.
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  • xschopxschop Posts: 854
    Nit-pic the smaller discrepancies of the inductors while Polk had the driver values all over the place.
  • stainless0steel2stainless0steel2 Posts: 151
    edited October 2017
    gimpod wrote: »
    I really hate to tell you but your using the wrong inductors, The DCR is to low and the wire gauge (AWG) looks to big.

    This is what you should have special ordered from PartsExpress

    0.40 mH, 22 AWG, Part No. 1489,
    1.25 mH, 20 AWG, Part No. 1137,
    2.50 mH, 20 AWG, Part No. 1695,

    Here's some link's to read on inductor replacement.

    forum.polkaudio.com/discussion/138234/inductor-dcr-insanity-for-sdas/p1

    forum.polkaudio.com/discussion/132437/upgrade-high-frequency-inductors-for-the-sda-srs-1-2tl/p1

    Sorry. :disappointed:

    No I'm glad you said something! After browsing through DarqueKnight's deal it's definitely clear that having the correct AWG is crucial. Thanks! I'll contact PartsExpress and get those ordered.

    The Night is Dark and Full of Terrors
  • westmassguywestmassguy Posts: 6,100
    You may have to order from a UK Jantzen distributor. Last I checked, Parts Express wasn't doing special orders anymore.
    https://www.hificollective.co.uk/
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Den:
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver C-500

    dhsspeakerservice.com/
    Exclusive Distributor of Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • Toolfan66Toolfan66 Posts: 13,827
    I might have him covered, I will check tonight..
  • Toolfan66Toolfan66 Posts: 13,827
    I have these:

    0.40 mH, 22 AWG, Part No. 1489 and the 2.7 MILLS if needed..

    I would check with VR3 and see if he has the other inductors..
  • Well after some delay I'm back at it.
    So I've decided to make some sweet cups at work out of some aluminum. Which I'll incorporate the neutrik connector into it. Which means the holes I made in the bottom corners need to be plugged with a dowel rod.
    However to do it right and completely conceal that plug. I need to peel off the original veneer to place a new one over it. So that's where I'm at for the time being.

    Anybody on here painted the inside of a cabinet before?

    u37ioxra52dm.jpg

    The Night is Dark and Full of Terrors
  • xschopxschop Posts: 854
    If you don't have a shop or ventilation area you can just roll some thick auto primer on and brush the corner areas
  • verbverb Posts: 2,952
    Whoa nice side panels!!! Looks like the center strip is aluminum? Hard to tell wood species from the pics, what type did you use? Stain/finish? Also how did you attach to the sides? Can you post some close ups? I'm currently in the middle of re-doing my 1C's. Thanks !!!
    Basement: Polk SDA 1C's, Micro Seiki MB14 TT, Rotel 1580 Pre, Marantz CD6006 CDP, Carver TX8 Tuner, Conrad Johnson MF2300A Amp, Furman 15PFi Power Conditioner, AQ Diamondback (version 1) RCA IC's, MIT Terminator2 Cables
    Office: PC, Marantz AMP-1, Acoustic Technologies Classic Speakers, Polk PSWi225 wireless sub, MIT AVt2 cables, IFI Purifier2, AQ Cinnamon USB cable
    Spare Room: Dayens Ampino Integrated, Auris BluMe, Polk TSi200's
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
  • pitdogg2pitdogg2 Posts: 10,555
    Those are very nice Brian. Doing anymore?
  • stainless0steel2stainless0steel2 Posts: 151
    edited December 2017
    Yep I finished up resealing and painting the insides. I replaced the veneers on the backs. The last two big things I need to do is mount the new xovers. As well as build a fixture for the 16mh inductors so they can mount on the bottom.

    nujpe6ylxw5g.jpg
    The Night is Dark and Full of Terrors
  • verb wrote: »
    Whoa nice side panels!!! Looks like the center strip is aluminum? Hard to tell wood species from the pics, what type did you use? Stain/finish? Also how did you attach to the sides? Can you post some close ups? I'm currently in the middle of re-doing my 1C's. Thanks !!!

    Yea here's the old thread. The wood caps are just the standard Ash and I put like 3 coats of stain on them. I just used some construction adhesive to attach everything.
    The Night is Dark and Full of Terrors
  • Just finished up the new cups.rdb8wlbammnq.jpg
    m0r2pb42027l.jpg

    Using my best Tim Allen voice... Uhh Uhh Uhh Stainless Steel! Good Stuff. They look great!
    Sunfire Theater Grand IV
    Sunfire Cinema Grand Signature
    SRS 2.1TL
    SDA 2BTL's
    CSiA6
    FXiA4
    FXiA6
    SDA 2A's
    Monitor 10A's

    http://www.douglasconnection.com
  • xschopxschop Posts: 854
    Those terminal plates turned out nicely. Looks like 6061 or 7075. Just in time for Christmas too. There's nothing like Burl Ives in SDA lol.
  • Thank you! yea it's 6061. I'd like to have used stainless, but I don't have enough time.
    The Night is Dark and Full of Terrors
  • As for placement of the xovers how does this look? I don't think it'll disrupt the airflow?
    jdo4cl9a38ec.jpg
    The Night is Dark and Full of Terrors
  • pitdogg2pitdogg2 Posts: 10,555
    Airflow? Plan on porting the Brian lol

    I do not think that will be a problem area. The old XO was on the cup 3" below. If you are concerned how about just below if the driver wires will be lobg enough.
  • Toolfan66Toolfan66 Posts: 13,827
    That will not be a problem area..
  • xschopxschop Posts: 854
    edited December 2017
    Looks good. I was curious what is the size (lwh) of the factory MDF brace between the midwoofers?
    Post edited by xschop on
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