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Ampeg B-25B - ideas for cabinets?

Discussion in 'Amps and Cabs [BG]' started by unbasslichkeit, Dec 21, 2012.

  1. I have a shot at a Magnavox-era B-25B this Christmas, which is something I have wanted for years. Its affordable, it's in great shape (looks like a damn museum piece), I'm playing in a roots band where things are pretty well mic'd up so volume is enough for my purposes. Most of all, though when I plugged into it...OMFG after all these years tubes tubes again tubes again nothing like it tubes... :hyper::bassist::hyper:

    Anyway, I need to consider a cabinet for it and what I am thinking about is a compact 2X10 where I'd install separate input jacks on each speaker, being as the B25B has 16 ohm outputs, and plugging one into each output would be in keeping with the head specs. Does this make sense, or should I just keep a cab at 8 ohms and use a dummy plug like I've seen done elsewhere? (Fliptops.net also has a couple of 16 ohm 15's which I may consider.)

    Any ideas? only bad news is (after tonite) no gigs till mid-January.
  2. Bassmec


    May 9, 2008
    Ipswich UK
    Proprietor Springvale Studios
    Use two cables instead of the dummy plug I would be looking for very efficient EV, Altec or JBL loaded 15" cabs with this amp.
    Old sunn cabs are great.:bassist:
  3. coreyfyfe

    coreyfyfe Supporting Member

    Nov 19, 2007
    boston, ma
    If you're going to go the 2x10 route, I would grab two 4 ohm 2x10s and just rewire the speakers for series instead of parallel. You could use one or both at any time. I doubt a 2x10 alone with only 55 watts would cut it, but then again, I use a 25 watt amp with a 2x10/1x15 combo so who amp I to talk ;)

    Back on subject, if you weren't looking for compact, I'd go with a 2x15, do the separate jacks if you want, or just a single 16 ohm 2x15 cab. Should give you some nice thump. You could even do a series parallel switch like the original B25 cabs so you could use the cab at 4 ohms with other heads.
  4. CL400Peavey

    CL400Peavey Supporting Member

    Nov 7, 2011
    Grand Rapids Michigan
    +1 to the 4/16 ohm 215.
  5. will33


    May 22, 2006
    If you don't need huge stage volume, you may also consider doing a 4/16ohm 212. Can still get pretty good volume/thump at about 1/2-2/3 the size of the 215. Always fun playing big cabs though. Some work well in a bit smaller TL size boxes, so doesn't have to be an overly large 215.

    +1 to giving up a little deep LF for high spl.
  6. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    +2 go for an 8 or 16 ohm 2x15, and feel the bass.
  7. Ben B

    Ben B Supporting Member

    Jul 13, 2006
    San Diego, CA
    I love my B-25B! I use 1 or 2 BFM Jack-12s with mine. It's loud enough for practice small gigs. The speakers are 8 ohm, so, I use the dummy plug when using one cab, and I made a series cable to use with both cabs.
  8. godofthunder59

    godofthunder59 God of Thunder and Rock and Roll Supporting Member

    Feb 19, 2006
    Rochester NY USA
    Endorsing Cataldo Basses, Whirlwind products, Thunderbucker pickups
    2x15 all the way! I use one of these to rehearse with. It's a great sounding amp and paired with the original 2x15 it kills! AmpegB25B003.
  9. Mojo-Man

    Mojo-Man Supporting Member

    Feb 11, 2003

    Fliptops can build you a period exact 2x15 cab.
  10. dukeorock

    dukeorock Owner BNA Audio Supporting Member Commercial User

    Mar 8, 2011
    Nashville, TN
    Authorized greenboy designs builder/Owner of BNA Audio
    Would love to find a nice one...A customer of ours plays a B-25 and it sounds wonderful :)