Results 1 to 15 of 15
  1. #1
    AR Newbie Registered Member
    Join Date
    May 2010
    Posts
    3

    Wire to repair Bose 901 speakers

    I am in the process of refoaming my Bose 901 III speakers. The earlier thread, Re-foaming Bose 901's helped tremendously but I'm not having trouble reattaching the wire. Rewrapping the wire around the posts is difficult and some of the wire is breaking. I need to replace some of the wire. Does anyone know what gauge wire is in the speakers and if it is just solid wire or something special? Also, any suggestions on how to wrap the wire around the posts?

    Thanks

  2. #2
    Listener MikeyBC's Avatar
    Join Date
    Feb 2004
    Location
    Northern Ontario
    Posts
    319
    If the wire keeps breaking I'd replace all of the wiring with some good quality 16 or 14 gauge. Not sure what the posts look like but try to wrap it around the post tightly and apply some solder.
    Musical Fidelity A3.2 Integrated amp
    Musical Fidelity A3.2 CD
    Teac DS-H01 Dock
    Energy 22 Reference Connoisseur Speakers
    Cardas Cross and Cardas Hexlink Golden 5C
    Tara Labs RSC Reference Gen2



  3. #3
    Forum Regular audio amateur's Avatar
    Join Date
    Mar 2006
    Location
    France
    Posts
    2,523
    Using some 16 ga. oxygen free copper should do the trick.

  4. #4
    Super Moderator Site Moderator JohnMichael's Avatar
    Join Date
    Apr 2005
    Location
    Central Ohio
    Posts
    6,307
    If you are talking of the internal wiring there may not be room to run larger guage wires to the nine drivers. You might want to contact Bose on the possibility of buying a new wiring harness.
    JohnMichael
    Vinyl Rega Planar 2, Incognito rewire, Deepgroove subplatter, ceramic bearing, Michell Technoweight, Rega 24V motor, TTPSU, FunkFirm Achroplat platter, Michael Lim top and bottom braces, 2 Rega feet and one RDC cones. Grado Sonata, Moon 110 LP phono.
    Digital
    Sony SCD-XA5400ES SACD/cd SID mat, Marantz SA 8001
    Int. Amp Krell S-300i
    Speaker
    Monitor Audio RS6
    Cables
    AQ SPKR and AQ XLR and IC

  5. #5
    Forum Regular
    Join Date
    May 2009
    Location
    Home Of The Fighting Gamecocks
    Posts
    1,702
    Just order some hook up wire from Parts Express. Most companies use thin gauge internal wire so I'd duplicate whatever Bose used.

  6. #6
    Retro Modernist 02audionoob's Avatar
    Join Date
    Jun 2008
    Location
    Dallas, TX
    Posts
    2,908
    I don't know my way around BOSE speakers, but wrapping wire around a post requires a specific tool for that purpose. Depending on the gauge of the wire and the width of the post, you might need a custom-sized wrapping tool. The standard wrapping tool like you'd find at Radio Shack is tiny. Another option is to hand wrap as snug as you can and then hit it with a spot of solder.

  7. #7
    Forum Regular luvtolisten's Avatar
    Join Date
    Feb 2009
    Location
    Rochester, NY
    Posts
    526
    The wire you have in place is solid, since wire-wrapping only involves solid wire. The only advantage I see wire wrapping over soldering, is that it's cheaper and faster in production..
    Soldering is usually a better connection, since there is no chance for oxidation.You would be fine just giving the wires a single wrap and soldering as MikeyBC stated. As AA said, you may go with 16 AWG stranded wire, or 18AWG solid (which I'm guessing is what you had originally, if that).

  8. #8
    Super Moderator Site Moderator JohnMichael's Avatar
    Join Date
    Apr 2005
    Location
    Central Ohio
    Posts
    6,307
    Quote Originally Posted by luvtolisten
    The wire you have in place is solid, since wire-wrapping only involves solid wire. The only advantage I see wire wrapping over soldering, is that it's cheaper and faster in production..
    Soldering is usually a better connection, since there is no chance for oxidation.You would be fine just giving the wires a single wrap and soldering as MikeyBC stated. As AA said, you may go with 16 AWG stranded wire, or 18AWG solid (which I'm guessing is what you had originally, if that).



    As long as the temp is low enough that the voice coil is not melted while you solder the connections.
    JohnMichael
    Vinyl Rega Planar 2, Incognito rewire, Deepgroove subplatter, ceramic bearing, Michell Technoweight, Rega 24V motor, TTPSU, FunkFirm Achroplat platter, Michael Lim top and bottom braces, 2 Rega feet and one RDC cones. Grado Sonata, Moon 110 LP phono.
    Digital
    Sony SCD-XA5400ES SACD/cd SID mat, Marantz SA 8001
    Int. Amp Krell S-300i
    Speaker
    Monitor Audio RS6
    Cables
    AQ SPKR and AQ XLR and IC

  9. #9
    Retro Modernist 02audionoob's Avatar
    Join Date
    Jun 2008
    Location
    Dallas, TX
    Posts
    2,908
    Quote Originally Posted by JohnMichael
    As long as the temp is low enough that the voice coil is not melted while you solder the connections.
    Be quick

  10. #10
    I took a headstart... basite's Avatar
    Join Date
    Jul 2006
    Location
    Mortsel, Antwerp, Belgium, Europe, Earth
    Posts
    3,056
    get your soldering iron out.

    make it hot, do it quick.

    16gauge OFC copper will be miles ahead of the original cable too...
    Life is music!

    Mcintosh MA6400 Integrated
    Double Advent speakers
    Thiel CS2.3's
    *DIY Lenco L75 TT
    * SME 3012 S2
    * Rega RB-301
    *Denon DL-103 in midas body
    *Denon DL-304
    *Graham slee elevator EXP & revelation
    *Lehmann audio black cube SE
    Marantz CD5001 OSE
    MIT AVt 2 IC's
    Sonic link Black earth IC's
    Siltech MXT New york IC's
    Kimber 4VS speakercable
    Furutech powercord and plugs.

    I'm a happy 20 year old...

  11. #11
    Super Moderator Site Moderator JohnMichael's Avatar
    Join Date
    Apr 2005
    Location
    Central Ohio
    Posts
    6,307
    Quote Originally Posted by basite
    get your soldering iron out.

    make it hot, do it quick.

    16gauge OFC copper will be miles ahead of the original cable too...

    His series of 901's have 9 individual enclosures inside the speaker. I can not remember what they called this technology. Since the wire has to be thin enough to feed from internal chamber to another some 16 guage cables will be too thick.
    Attached Images Attached Images  
    JohnMichael
    Vinyl Rega Planar 2, Incognito rewire, Deepgroove subplatter, ceramic bearing, Michell Technoweight, Rega 24V motor, TTPSU, FunkFirm Achroplat platter, Michael Lim top and bottom braces, 2 Rega feet and one RDC cones. Grado Sonata, Moon 110 LP phono.
    Digital
    Sony SCD-XA5400ES SACD/cd SID mat, Marantz SA 8001
    Int. Amp Krell S-300i
    Speaker
    Monitor Audio RS6
    Cables
    AQ SPKR and AQ XLR and IC

  12. #12
    Forum Regular
    Join Date
    Apr 2008
    Location
    Victoria BC.
    Posts
    35
    Good day!

    I have been away for a long time and have not finnished the rebuild project yet. I was concidering replacing the stock wire with a larger gauge better quality wire. I was thinking about using a pencill type solering iron to melt the holes between chambers bigger then once the wires where installed, I was going to seal them with some undetermand sealing compound to make them air tight and to prevent the wire from vibrating against the plastic.
    I was also going to make them a little bit longer to make installing the drivers easyer but not too long so the wires do not touch inside and vibrate making noise. I was going to solder the wires to the drives but I would use a small set of needle nose vise grips and lightly clamp them to the bottom of the pin. This will act as a heat sink and help prevent the plastic basket from melting. Solder the wires at the end of the pins as far away from the basket as possible and do it quikly but make shure you do not get a cold solder conection as this would defeat the purppous of soldering all together.
    Last edited by BCbud; 08-07-2010 at 04:14 PM.

  13. #13
    Forum Regular
    Join Date
    Jan 2010
    Posts
    76
    B,

    FWIW I am fairly certain that the wire is aluminum. Replacing it with different wire will change the sound...you may like the change but keep in mind that the speaker was voiced with that wire in place. IME aluminum can sound tizzy or somewhat bright. So you may lose some high end that might be needed.

    In addition, thicker gauge might not be an improvement. Especially if it is stranded.

    And using a different wire like copper will almost certainly mean a mismatch of metals which may not be good sonically. Jon Risch has some papers about dissimilar metals.

  14. #14
    Forum Regular
    Join Date
    Apr 2008
    Location
    Victoria BC.
    Posts
    35
    Quote Originally Posted by Dawnrazor
    B,

    FWIW I am fairly certain that the wire is aluminum. Replacing it with different wire will change the sound...you may like the change but keep in mind that the speaker was voiced with that wire in place. IME aluminum can sound tizzy or somewhat bright. So you may lose some high end that might be needed.

    In addition, thicker gauge might not be an improvement. Especially if it is stranded.

    And using a different wire like copper will almost certainly mean a mismatch of metals which may not be good sonically. Jon Risch has some papers about dissimilar metals.
    I just got home and looked at the stock wires in the speakers and they are tinned copper and the pins on the driver pins are steel so I do not think the mismatched metals was a problem back then and shouldn't be now.

  15. #15
    Forum Regular
    Join Date
    Jan 2010
    Posts
    76
    Quote Originally Posted by BCbud
    I just got home and looked at the stock wires in the speakers and they are tinned copper and the pins on the driver pins are steel so I do not think the mismatched metals was a problem back then and shouldn't be now.
    Ok. I should have looked closer. YOu have the 3 series. I was talking about the latest. Sorry

Thread Information

Users Browsing this Thread

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

Posting Permissions

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