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GK 400rbIII 2x10 combo question

Discussion in 'Amps and Cabs [BG]' started by deadphish, Nov 9, 2004.


  1. deadphish

    deadphish

    Oct 2, 2004
    Does anyone have any experience adding an extension cab to this combo? Some have said that the it is not a good idea due to the power of the amp itself. I paid $750 for this this thing and would like to know that it is expandable. TIA.

    dave
     
  2. pyrohr

    pyrohr

    Aug 28, 2001
    Pakistani compound
    You could add a second cab and get the full 240 watts. I believe that combo puts out 125 watts @8 ohms. I owned a 400RBII 1x15 for a while (decent for small venues) but switched to the 1001RB 2x10 for the power. I also have a RBH 1x15 cab and together with the 400RBII it was under powered. Oh If you deide to use a GK cab you can go with the SBX series cabs.
     
  3. There's no reason you couldn't add an extension cabinet. In fact the new GK 115SBX-II would be a great match for that.
     
  4. deadphish

    deadphish

    Oct 2, 2004
    Awesome. I was hoping to get some go aheads. I believe the 400rb is 180w at 8ohm and 280w at 4ohm. The 10's in there are 100w each so if I add that 15 I have 400 total watts. So 280w into 400w of speakers is considered acceptable? I am new to this so that is the reason for asking....:)
     
  5. pyrohr

    pyrohr

    Aug 28, 2001
    Pakistani compound
    The 400RBIII is 240 watts @ 4ohms, The 400RBIV (newer version) is 280 watts 4ohms.
     
  6. deadphish

    deadphish

    Oct 2, 2004
    Ahhh. I see. So you think 240 into 400 is ok?
     
  7. deadphish

    deadphish

    Oct 2, 2004
    I am just wondering becasue it seems like you would want to have equal or more pwer going to your cabs.