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Sub bass

Discussion in 'Amps and Cabs [BG]' started by 5StringThunder, Jan 24, 2013.

  1. 5StringThunder


    Dec 28, 2012
    I play in a prog/djent metal band. I would like to be able to get some super low sub bass. Not necessarily dubstep/house music sub but I want everyone to be able to feel the bass and to get the rafter shaking a little bit. I'm currently running ESP 5 string basses through a boss ODB-3 pedal, a boss NS-2, a fender rumble 350 head, Acoustic 410 and 115 cabs. I want to get this sub bass but still maintain the punchiness and attack. Should I be looking at adding a cab or maybe just an octave pedal?
  2. CL400Peavey

    CL400Peavey Supporting Member

    Nov 7, 2011
    Grand Rapids Michigan
    I would be looking replacing both your cabs.
  3. SirMjac28

    SirMjac28 Patiently Waiting For The Next British Invasion

    Aug 25, 2010
    The Great Midwest
    Boom Stick Bottom feeder is a pedal that will shake the roof.
  4. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    True sub bass would require seperate amps for the lows and highs, as well as real subwoofers, insteads of full range bass cabs, which both of your cabs are. You'd also need an enormous amount of power for the lows. Essentially, you're talking about a full PA system. Short of that, I agree with CL400P above, lose the 2 acoustic cabs, get a bigger, more powerful amp, and try out some Acme cabs, big ones. (hint- the SIZE of the actual spkr is less important than the overall design of the cab)
  5. Be careful what you wish for. Feeling bass at 80hz is one thing, but feeling 40hz isn't very nice for very long. As mentioned, bass cabs are not subs, unless you go Fearful or BFM.

    Suggest assembling a rig at a GC. Mini mixer, graphic eq, crossover, big 2000w powered sub and your head with single cab. Play about with the graphic to find the meat, probably 60 to 100Hz will spin your wheels much better than 30 to 60hz.

    Octave pedal is a good way to blow up stuff.
  6. rtav

    rtav Millionaire Stuntman, Half-Jackalope

    Dec 12, 2008
    Chicago, IL
    Here... 500w... Low B.. octave down on the multi-effects.


  7. I've got half of the bottom cab. Same tuning and almost zero 30hz comes out of it. Try it with sine waves. You'll find it's the 2nd harmonic doing the business.
  8. ThisBass


    Aug 29, 2012

    A lot of folks can't accept (or believe or imagine) that underneath 45..50 Hz most of the time there is nothing else but zero.

    Ähm of course it is possible to measure some SPL (or Pressure Level) at 35Hz at the ports but probably without tonal reinforcement.
  9. ThisBass


    Aug 29, 2012

    Fourier Analysis tells that the information for the fundamental is still present in the envelope even when the fundamental itself is obsolete.

    With other words, if the fundamental is obsolete then it is possible to (re)predict the fundamental by extant Harmonics.
    Humans ears are wonderful high performance calculators ....
  10. 5StringThunder


    Dec 28, 2012
    Is that a 410 and a 215? I also love the ESP.
  11. 4StringShooter

    4StringShooter Banned

    Jun 26, 2011
    London, Ontario, Canada
    GBX Member #1
    Too bad nobody can hear it, let alone feel it. Dreamer.
  12. ThisBass


    Aug 29, 2012
    Probably most of all bass players all around the world are believing in hearing the Fundamental frequency.
  13. walterw

    walterw Supportive Fender Gold Supporting Member Commercial User

    Feb 20, 2009
    not your job!

    your stage sound needs to be no louder than the drums, and full and solid enough for you to hear comfortably.

    the rafter-shaking is done by the PA.

    you can send the PA a direct sound full of crazy sub-bass, but it usually gets filtered out below maybe 40Hz before it reaches the big speakers.

    +1 to that lowest fundamental being mostly absent; the bass string itself mostly just gives you the first octave harmonic, so that "31Hz" 5-string low B is mostly putting out 60 some-odd Hz.
  14. WildBill987


    Dec 8, 2011
    I went to see a buddy play at a pretty small venue. He plays a Pedulla 5 string thru an Eden 1000 watt amp w. 2 channels. One goes to a 2x10 with a tweeter, and the other goes to a plain 2x10 that functions as a sub. My beer bottle was dancing on the bar at times. Pretty awesome in that setting. I sat in a little later, and felt like my legs belonged to Gumby, standing in front of that rig. Not the cheapest setup, but it really worked that nite.