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Speaker for B-15 clone

Discussion in 'Amps and Cabs [BG]' started by Matt B, Dec 27, 2013.

  1. Matt B

    Matt B

    Mar 31, 2012
    New Zealand

    I am starting to build a B15 clone and would like a bit of input on the speaker choice.

    I have searched these forums a lot and what it seems to come back to is that the eminence Delta or Beta 15a are both fair contenders. I was pretty close to ordering the Delta but keep thinking about the Weber Cali 15 with the Aluminum dome. It seems they are meant to be a close tribute to the JBL D140F which i understand was considered an upgrade speaker for the B 15 cabs.

    Has anyone tried the Weber Cali 15 in a B 15 cab?

  2. Matt B

    Matt B

    Mar 31, 2012
    New Zealand
    If no one has tried a Weber Cali 15 in a B15 cab has any body here had experience with them in any other bass cab?
  3. TinIndian

    TinIndian Supporting Member

    Jan 25, 2011
    Micco Florida
    Cool project. Sorry I don't have any input in the speaker but I have a question are you building the amplifier yourself? Is it from a kit or are you building from a schematic?
  4. NKBassman

    NKBassman Lvl 10 Nerd Supporting Member

    Jun 16, 2009
    Winnipeg, MB, Canada
    I have nothing to offer, just curious about the answer.
  5. coreyfyfe

    coreyfyfe Supporting Member

    Nov 19, 2007
    boston, ma
    Haven't tried the weber. I've had a few eminences, a JBL K140, and CTS (stock and recones) in my B15Ns. The single baffle I had was complete with its stock CTS. My double baffle came to me with the K140, I tried some eminence, and finally settled on the reconed CTS. The aluminum cap JBL was a bit honky in that cab IMO, the CTS and eminence were smoother. If I was building a new cab I'd probably go for an eminence beta, but not having heard a D140 I can't really comment on the weber. Best of luck to you.
  6. P Town

    P Town

    Dec 7, 2011
    Are you reproducing a double baffle cab, or the later design?
  7. Grissle


    May 17, 2009
    Where did you find plans! I've looked all over. I've got a couple of Altec 421's begging for some B-15 cabs! I've also got a nice JBL-E140 looking for a cozy enclosure.
  8. Matt B

    Matt B

    Mar 31, 2012
    New Zealand

    Hey. I am building it myself from a schematic. I am not aware of a kit for them. I have not started building yet but have started ordering so I am committed. Should have something to show February / march.
  9. Matt B

    Matt B

    Mar 31, 2012
    New Zealand

    I don't have access to them from my phone here but the website ctg electronics. The guy that runs it is generous with info...
  10. Matt B

    Matt B

    Mar 31, 2012
    New Zealand
    I was planning on making 2 cabs for it so maybe I do a weber and a delta or beta. Once I have a preference order the extra driver. I will need to see how my budget looks in February. Thanks for the input.
  11. Vintage-Blue

    Vintage-Blue Gold Supporting Member Commercial User

    Feb 13, 2008
    Cincinnati, OH
    Owner, Vintage Blue (repro cabinets)
    Here is a link to the latest B15N-style project on the site: CtG FCBN 51B

    This latest rendition is sized so that it is "flippable" when used with a single or double-baffle cabinet. Keith does a great job of documenting his projects.
  12. Matt B

    Matt B

    Mar 31, 2012
    New Zealand
    For anyone that is interested... Once I get the chassis back from the laser shop (hopefully this week) I can start to put together my b15 clone based on the CTG layout. I have everything else here now.

    I wanted to build 2 cabs. 1 with a weber Cali 15 and one with a beta 15a. I have the weber here now and then blew my beta 15 budget on a JBL k140. I will load the 2 cabs that way for now and get a beta in a month or two. Once I figure which speaker I like the sound of the best I will load both cabs the same way... If anyone is interested I will post some progress pics once the chassis is back.
  13. NKBassman

    NKBassman Lvl 10 Nerd Supporting Member

    Jun 16, 2009
    Winnipeg, MB, Canada
    Please do.
  14. Matt B

    Matt B

    Mar 31, 2012
    New Zealand
    I have got the amp running, a little bit of hum to tidy up this weekend and a cage to cover the tubes to be built but it sounds amazing!

    I have all the cutting done for the single baffle cabs but will not get a chance to assemble the cabs for a week or 2 at the moment, I have the weber Cali 15 and JBL K 140 ready to go and will order a beta 15 in couple of weeks.

    Thanks to Keith from CTG

    Attached Files:

  15. BassmanPaul

    BassmanPaul Gold Supporting Member

    Aug 25, 2007
    Toronto Ontario Canada
    Errr Matt?

    This amp should definitely appear in the Amp Guts thread. Both top and under chassis shots are required.

    What do you mean by "laser shop"? I question because I have six blank chassis that need cutting. :)

    Edit: I would also like to see an example of your work. How other folk put stuff together interests me greatly. :D
  16. NKBassman

    NKBassman Lvl 10 Nerd Supporting Member

    Jun 16, 2009
    Winnipeg, MB, Canada
    I'm jealous of your skills.
  17. beans-on-toast

    beans-on-toast Supporting Member

    Aug 7, 2008
    Very nice work Matt. If it sounds half as good as it looks, you'll have a wonderful amp.
  18. Fantastic.
  19. Matt B

    Matt B

    Mar 31, 2012
    New Zealand
    I will look to add some details to the amp guts thread later. Here is a quick gut shot for now... This is only my second build so still a lot to learn but pretty happy so far. ImageUploadedByTalkBass1397615476.706742.

    In regard to the laser shop. I put a lot of work through a local cnc production shop for my day job so the are helpful with one offs for me.

    I will show more details once the cabs are done.
    Last edited: Apr 17, 2014
  20. Very, very nice Matt, Love my B15N. If I constructed it myself I'd probably starve to death (with a smile on my face) from not being able to leave it alone! Hope you can show more constraint......