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Noob help: use old combo amp as cabinet?

Discussion in 'Amps and Cabs [BG]' started by Diamond_Dave, Aug 4, 2017.

  1. Hi all--my combo amp, an old Crate B160XL, just pooped its pants for the last time. I'm hopefully picking up a Fender Rumble 200 at the local shop down the road in the morning. So here's my question--rather than pull the speaker from the Crate and sell it on eBay (a PITA) and dumping the rest of it, is there any reason I can't use the Crate as an extension cab?

    The Crate head unit is physically separate from the cabinet (it unscrews and slides out) and connects to the cabinet via an external speaker plug. So I'd just remove the fried head, get a longer speaker cable, and connect the Crate headless cab into the back of the Fender.

    The speaker in the Crate is a 15" Electro Voice Force. From what I've found online, it's 8 ohms and rated for 150 watts.

    Thanks for the advice!
  2. charlie monroe

    charlie monroe Supporting Member

    Feb 14, 2011
    Buffalo, NY
    Yes, you can do this.
    Lo-E, Diamond_Dave and Bodeanly like this.
  3. MrLenny1


    Jan 17, 2009
    Make sure that the Rumble can run at or is rated for 4 ohms.
    Aqualung60, eddododo and Diamond_Dave like this.
  4. Thanks.

    The back of the Rumble says 8 OHM MIN. 100W
    eddododo likes this.
  5. Bodeanly

    Bodeanly Supporting Member

    Mar 20, 2015
    Diamond_Dave likes this.
  6. Great thinking on your park. If you like the sound you are getting I see no reason why you cannot keep on doing what you are doing if it meets your needs and the tone is good.
    Diamond_Dave likes this.
  7. Stumbo

    Stumbo Wherever you go, there you are. Supporting Member Commercial User

    Feb 11, 2008
    Intergalactic Mind Space
    Song Surgeon sofware
    8 ohm extension cab.

    Is the Crate 8 ohms? Is so, yes.

    Also, stack the cabs vertically for better dispersion, less distortion and you'll be able to hear yourself much better on stage.

    Be sure to go FOH and hear how it sits in the mix.
    Last edited: Aug 5, 2017
    Diamond_Dave likes this.
  8. Raulplaysbass


    Jun 3, 2017
    Azusa, Ca
    Yrs! I had great success doing just that when my 2x10 Trace Elliot combo died. But I had to carefully remove the carpet, cut the amp housing, re-glue the cab, add a separate attenuator/cross over for the tweeter, cut a hole a jack plate, cut and re-glue the carpet, reuse the chrome corners and......whalllaa!!!

    An extension cab!
    Diamond_Dave likes this.
  9. Thanks everybody for the feedback! I'll let you know how it works out.
    Stumbo likes this.
  10. It can. I have one and have done this.
    Diamond_Dave likes this.
  11. AcridSaint

    AcridSaint ベーシスト Supporting Member

    Jan 30, 2012
    I don't play well.
    If the back says 8ohm minimum then it is not rated for a 4ohm load.
  12. Ric5

    Ric5 Supporting Member Commercial User

    Jan 29, 2008
    I convert 4 string Rickenbackers to 5 string basses.
    Is the speaker in your new amp 8 ohm? If yes then running two 8 ohm speakers from your amp will give you a 4 ohm load.
    Diamond_Dave likes this.
  13. StatesideRambler


    Jul 1, 2015
    According to Fender in the owner manual for the Rumble 200 it puts out 140W into an 8-ohm load (the internal speaker) and 200W into 4 ohms (8-ohm internal plus 8-ohm extension). The text by the extension speaker out means that the extension must be at least 8 ohms [to keep the total load at or above 4 ohms]. OP is good to go!
  14. AcridSaint

    AcridSaint ベーシスト Supporting Member

    Jan 30, 2012
    I don't play well.
    If that's intended for the extension then yes, I agree.
    Diamond_Dave likes this.
  15. abracadunphy


    May 22, 2015
    Diamond_Dave likes this.
  16. TrevorR


    Oct 3, 2015
    Near London, UK
    It looks like the 8Ω on the back of the Rumble refers to the minimum load presented by an external speaker rather than the minimum combined load to present to the amp. Therefore plugging in the extension speaker should be fine!

    IMG_2463.PNG IMG_2464.PNG
    Diamond_Dave likes this.
  17. packhowitzer

    packhowitzer 155mm of pure destruction

    Apr 20, 2011
    lol:D :thumbsup:
    Raulplaysbass likes this.