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i want to power two 4 ohm cabs

Discussion in 'Amps and Cabs [BG]' started by sbskates, Jan 5, 2005.


  1. sbskates

    sbskates

    Jun 13, 2004
    what heads will do this ???????????
     
  2. Anything that says 2 ohms on it.
     
  3. Glenn D.

    Glenn D.

    Aug 20, 2002
    Fort Collins, CO
    Or a two channel power amp that can handle 4 ohms per channel.

    Glenn D.
     
  4. James Hart

    James Hart

    Feb 1, 2002
    toms_river.nj.us
    Endorsing Artist: see profile
    I run a pair of 4 ohm cabinets in series for an 8 ohm load.
    I bought a funky T shaped speaker cable.

    My main rig is a tube head, so I'm not really loosing output with it this way... for my backup, by going from 4 ohms to 8 I'm going from 1100 watts to 900 watts... still MORE then enough.
     
  5. Eric Moesle

    Eric Moesle Supporting Member

    Sep 21, 2001
    Columbus OH
    Any two channel power amp with separate preamp will do. Example: I run two 4 ohm 4x10 cabs, each one on a different channel of my QSC PLX3002 power amp.
     
  6. Tritone

    Tritone Supporting Member

    Jan 24, 2002
    Santee, America
    My cabs are all 4 ohms. When I need more than one cab, I just use an additional amp (Thunderfunks). Having said that, I'm going to be giving one of those Speakermate things a whirl soon. Just waiting for it to get here....
     
  7. IvanMike

    IvanMike Player Characters fear me... Staff Member Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    check this link
    one other tb member made a great list of heads that woudl power 2 ohms and i cant find the thread

    click here
     
  8. tombowlus

    tombowlus If it sounds good, it is good Gold Supporting Member

    Apr 3, 2003
    North central Ohio
    Editor-in-Chief, Bass Gear Magazine
    The thread you referenced does, itself, include a link to the dude's list of 2 ohm stable heads.
     
  9. 7thbass

    7thbass

    Nov 21, 2003
    Houston, Tx
    Does great at 2 ohms
     
  10. Stinsok

    Stinsok Supporting Member

    Dec 16, 2002
    Central Alabama
    How are you doing that? Wouldn't 4+4=2 ohms? Thanks
     
  11. IvanMike

    IvanMike Player Characters fear me... Staff Member Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    the cable he's using hooks the cabinets up in series rather than parallel. 4 ohm and 4 ohms in series is 8 ohms .
     
  12. Stinsok

    Stinsok Supporting Member

    Dec 16, 2002
    Central Alabama
    I am really interested in this. I want to make sure I understand. James is coming out of the power amp, into one 4 ohm cab, out of that into another 4 ohm cab-right?
     
  13. cb56

    cb56

    Jul 2, 2000
    Central Illinois
    Ampeg SVT 4pro
    Ampeg B4r
    Hartke 7000
    Carvin R1000/600
    all have stereo power amps that will run one 4 ohm cab per side.
     
  14. IvanMike

    IvanMike Player Characters fear me... Staff Member Supporting Member

    Nov 10, 2002
    Middletown CT, USA
    no that's a parallel conection
    special cables are required when using the parallel outs on cabinets and amps to make a series connection
     
  15. the dude

    the dude Supporting Member

    Sep 19, 2004
    Indy
    Here's the link to save you paging through the old thread.
     
  16. James Hart

    James Hart

    Feb 1, 2002
    toms_river.nj.us
    Endorsing Artist: see profile
    I got a cable from http://www.procablesnsound.com/

    it's a big "T" made from 12 gauge wire with 3x 3 foot legs. 1/4" connector for my Peavey tube head (and a 1/4" to speakon for my bridged Crown), then a speakon for each Schroeder

    cost me $50 with the adapter and shipping

    I caught the link to procablesnsound from Henry (fellow TBer and Benavente and Schroeder player like myself :cool: )
     
  17. sbskates

    sbskates

    Jun 13, 2004
    so here is my question if i have a gk 1001 rb that powers 1 4ohm or two 8 ohm .

    i am using 1 big 4 ohm now but would like to add 1 210 for some more punch highs etc.

    so i can get a cable from them that would connect the two cabs from 1/4 to 1/4 connector jacks to my head and it will work becuas eits in series and becomes an 8 ohm load?
     
  18. James Hart

    James Hart

    Feb 1, 2002
    toms_river.nj.us
    Endorsing Artist: see profile
    I only got the speakon because my cabs have that option. having all 3 connectors 1/4" would make it a little cheaper I think.

    What does your head put out @ 8ohms? Some heads will loose to much, I was lucky that my poweramp is still 900watts at 8ohm bridged... and the tube head is the same at either 4 or 8 ohms
     
  19. Tritone

    Tritone Supporting Member

    Jan 24, 2002
    Santee, America
    Hey James, I just tried out a 1/4 version of the cable you suggested (TFB-420 into two 4 ohm WBS 2X12 cabs). A local shop here made one up for me, and it only took about 15 minutes!. It actually works great!

    So if my amp is now "seeing" 8 ohms, I should be able to run a 3rd 4 ohm cabinet in parallel to make the amp operate at 4 ohms again, right?

    Boooohhaahahhahahaha!!! :D