Wiring a Cabinet?? Look here

Discussion in 'The Sevenstring.org Workbench' started by unconventional, Jun 6, 2008.

  1. unconventional

    unconventional SS.org Regular

    Messages:
    532
    Likes Received:
    106
    Joined:
    Feb 19, 2008
    Location:
    Worse-ter, MA
    Seems to be some threads with hints of this inside, so I decided to create one rather then derail others threads which usually results in no answers for me.

    So here it is.

    Is this a good way to wire a 4x12?

    [​IMG]

    I have a bunch of 8ohm speakers coming.

    I'm also told that you can test ohms with a voltmeter, is this correct and what is the proper procedure?

    Thanks.
     
    noodles likes this.
  2. Prada3353

    Prada3353 Banned

    Messages:
    269
    Likes Received:
    8
    Joined:
    Mar 25, 2008
    Location:
    Southern Illinois
    idk about a "volt meter" but a multimeter will do just fine, you can them from $5-$70, very handy for a guitarist, they are really simple to use, just turn the dial thing to ohms
     
  3. Groff

    Groff Medicine Chief/RHLC© Contributor

    Messages:
    14,386
    Likes Received:
    1,479
    Joined:
    Jul 10, 2007
    Location:
    South Jersey
  4. unconventional

    unconventional SS.org Regular

    Messages:
    532
    Likes Received:
    106
    Joined:
    Feb 19, 2008
    Location:
    Worse-ter, MA
    Yeah I have a fluke 289, but don't really know much about it. Stole it and a dewalt chopsaw, cordless drill and several other items from the builder of my house that wouldn't fix a problem :scream:
     
  5. noodles

    noodles Contributor

    Messages:
    18,493
    Likes Received:
    2,335
    Joined:
    Aug 23, 2005
    Location:
    Woodbridge, VA
    Good idea, stickied :yesway:
     
  6. budda

    budda Guiterrorizer Contributor

    Messages:
    21,316
    Likes Received:
    1,477
    Joined:
    Jan 22, 2007
    Location:
    London ONT
    does the 412 you're wiring have speakers? do you have another 412 to refer to?

    i just simply kept the colours the same when I replaced the speakers, made life really easy lol.
     
  7. Zepp88

    Zepp88 Arktanian Diplomat Contributor

    Messages:
    22,540
    Likes Received:
    833
    Joined:
    Apr 17, 2007
    Location:
    A Technological Deadzone
  8. neoclassical

    neoclassical FENRISMAW

    Messages:
    948
    Likes Received:
    79
    Joined:
    Jul 26, 2007
    Location:
    Petty obsessions. If this is heaven, how bad is he
    Set your multimeter to ohms plug in your speaker cable to the cabinet, and touch the black probe to the sleeve and the red probe to the tip of the other end your speaker cable plug. This will give you a readings of ~14ohm for a 16ohm cab, 6-7ohm for an 8 ohm cab, and 2-3 ohm for a 4ohm load.

    Adam
     
  9. unconventional

    unconventional SS.org Regular

    Messages:
    532
    Likes Received:
    106
    Joined:
    Feb 19, 2008
    Location:
    Worse-ter, MA
    Thanks for that. I was thinking my meter was off or something.
     
  10. Josh Lawson

    Josh Lawson Banned

    Messages:
    1,042
    Likes Received:
    52
    Joined:
    Jun 14, 2008
    Location:
    Davis, Ca
    I wired up my 4-12" a different way. The old PV cab I own had really small gauge wires in it 24 gauge I think. When I went to 16 ohm Texas heats, I wired the cab with an extension cord (rated at wall current 2700 watts) into2-8ohm branches. The cab has no ohms switching or one input operation, but I made 2 custom y cables to either half or double (the "fourOhmulator" and the SixteenOhmulator respectively.) these are nothing more than a speaker cable cut in half and wired onto an input jack, series or parallel. The bigger hand wired cab is WAY more efficient and clearer sounding than it ever was before. Something to think about.
     
  11. march

    march SS.org Regular

    Messages:
    224
    Likes Received:
    57
    Joined:
    Feb 24, 2008
    Location:
    Brussels, Belgium
    Found this on the Eminence website:

    Wiring Configuration for 2 Speakers in Parallel
    Two 4 ohm speakers = 2 ohm load
    Two 8 ohm speakers = 4 ohm load
    Two 16 ohm speakers = 8 ohm load
    [​IMG]
    Wiring Configuration for 2 Speakers in Series
    Two 2 ohm speakers = 4 ohm load
    Two 4 ohm speakers = 8 ohm load
    Two 8 ohm speakers = 16 ohm load

    [​IMG]
    Wiring Configuration for 4 Speakers in Parallel
    Four 8 ohm speakers = 2 ohm load
    Four 16 ohm speakers = 4 ohm load
    Four 32 ohm speakers = 8 ohm load

    [​IMG]
    Wiring Configuration for 4 Speakers in Series/Parallel
    Four 4 ohm speakers = 4 ohm load
    Four 8 ohm speakers = 8 ohm load
    Four 16 ohm speakers = 16 ohm load

    [​IMG]
     
  12. Zepp88

    Zepp88 Arktanian Diplomat Contributor

    Messages:
    22,540
    Likes Received:
    833
    Joined:
    Apr 17, 2007
    Location:
    A Technological Deadzone
    Okay, what if I wanted to wire up my Vader cab in stereo with switching jacks?

    Since the Vader only has two jacks on it's panel is there a way to wire it so that if I have one cable plugged into one jack it will be mono, but if both jacks have a cable present it will be stereo?

    I wanna use both sides of my 50/50 :evil:
     
  13. Zepp88

    Zepp88 Arktanian Diplomat Contributor

    Messages:
    22,540
    Likes Received:
    833
    Joined:
    Apr 17, 2007
    Location:
    A Technological Deadzone
    After some research, I found this site.


    [​IMG]

    [​IMG]

    Cool shit.
     
    Josh Lawson likes this.
  14. Zepp88

    Zepp88 Arktanian Diplomat Contributor

    Messages:
    22,540
    Likes Received:
    833
    Joined:
    Apr 17, 2007
    Location:
    A Technological Deadzone
    Nice, also, they have a nice explanation of how to count ohms.
     
  15. sami

    sami porkshop sammiches

    Messages:
    4,762
    Likes Received:
    760
    Joined:
    Sep 23, 2008
    Location:
    Austin TX USA
    How about mixing 2 cabs with different ohms? Here's an easy formula to remember:

    Take the two cabs, multiply them for the 1st integer.
    Add the two cabs together for the 2nd integer.
    Then divide the 1st integer by the 2nd to get the result.


    (cab1 x cab2) / (cab1 + cab2) = final ohmage


    example:

    cab1 is 16 ohms. cab2 is 8 ohms.

    so

    16 x 8 = 128
    16 + 8 = 24

    128 divided by 24 = 5.33333 ohms.
     
  16. djcheesmo

    djcheesmo 4thSyndicate

    Messages:
    2
    Likes Received:
    0
    Joined:
    Nov 3, 2008
    Location:
    Brantford ,ontario,canada
    2x8 ohms speakers wired in parallel = 4 ohms , wired in series = 16 ohms..
    doing this twice for 4 speakers brigs it back to 8 ohms...using a 12 guage wire
    over 16 or even 14 will for sure be helpfull .not sure if one can hear the actual difference the guage makes?? however the amp will know...
     
  17. jllozano

    jllozano SS.org Regular

    Messages:
    1,551
    Likes Received:
    16
    Joined:
    Aug 16, 2007
    Location:
    Laredo, TX
    which is the correct configuration out of these for a vader 4x12.....?any help would be appreciated....
     
  18. FoxZero

    FoxZero Zero Imperfections

    Messages:
    868
    Likes Received:
    71
    Joined:
    Aug 14, 2007
    Location:
    West Chester, PA
    This is a cool thread, I wish I still had my link from a while back.

    Anyways I got a Vader 2x15 with two input jacks. I want to daisy chain my cabs, so does anyone know if it is possible for me to convert one of the input jacks into an output?
     
  19. headnuts

    headnuts HEADNUTS

    Messages:
    1
    Likes Received:
    0
    Joined:
    Apr 20, 2008
    Location:
    Montana
    hey im trying to put some new speakers in an older pv xxl cab, it has blue marvel 16 ohm speakers and i just got 2 V30's and 2 greenbacks that are both 8 ohm, i believe that the factory wiring is wired parallel for the 16 ohms. can i just swap out the speakers for the new ones?
     
  20. Sy-Furr

    Sy-Furr The Kicker of Elves

    Messages:
    21
    Likes Received:
    6
    Joined:
    Aug 6, 2009
    Location:
    Bellingham, WA
    Here is the Marshall and Randall and many others type of wiring.

    This is for a 4Ω/16Ω mono and a 8Ω stereo setup.

    I drew this myself so please double check me!
     

    Attached Files:

    Mattmc74 likes this.

Share This Page