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Speaker for B-15 clone

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

  1. Matt B

    Matt B

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    Hi,

    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?

    Cheers,
    Matt
  2. Matt B

    Matt B

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    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

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    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 Supporting Member

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    I have nothing to offer, just curious about the answer.
  5. coreyfyfe

    coreyfyfe Supporting Member

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    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 Guest

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

    Grissle Supporting Member

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    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

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    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

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    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

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    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

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    Disclosures:
    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

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    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 Supporting Member

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    Please do.
  14. Matt B

    Matt B

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    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

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    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 Supporting Member

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    I'm jealous of your skills.
  17. beans-on-toast

    beans-on-toast

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    Very nice work Matt. If it sounds half as good as it looks, you'll have a wonderful amp.
  18. vin*tone

    vin*tone Supporting Member

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    Fantastic.
  19. Matt B

    Matt B

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    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.jpg

    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. bachlover

    bachlover Supporting Member

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    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......

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