Vertical stacking is there a limit?

Discussion in 'Amps and Cabs [BG]' started by JWH91, Nov 7, 2017.

  1. JWH91

    JWH91

    Sep 30, 2017
    What is considered overkill for example two 410s stacked vertically sounds louder than side-by-side. Now my question is let's say we have an 810, would eight individual 10" drivers stacked vertically sound louder than your standard 810?

    For those who already know me on this forum, as you can see I am sober and clearly ready to learn some theory on speaker amplification and sound waves, for the next 15 minutes at least lol
     
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  2. charlie monroe

    charlie monroe Gold Supporting Member

    Feb 14, 2011
    Buffalo, NY
    That column would approach 10 feet tall.
     
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  3. Stumbo

    Stumbo Guest

    Feb 11, 2008
  4. Lobster11

    Lobster11 Supporting Member Supporting Member

    Apr 22, 2006
    Williamsburg, VA
    How about two stacks of 18 (1x15) cabs each?

    Dead+Wall+1.jpg
     
  5. AdamR

    AdamR Inactive Supporting Member

    Sep 24, 2007
    Bethel CT
    When you need a ladder to stack them or they fall over, that's the limit.
     
  6. Mushroo

    Mushroo Guest

    Apr 2, 2007
    What is considered "overkill" depends on the specifics of the gig and the venue. Since in this case you are playing a 45 minute opening set with PA support, I think any stack that is taller than you are would be overkill.
     
  7. Roland GR 88

    Roland GR 88 Commercial User

    Sep 16, 2013
    Ontario Canada
    Retail store manager
    Let gravity be your guide........
     
  8. two fingers

    two fingers Opinionated blowhard. But not mad about it. Inactive

    Feb 7, 2005
    Eastern NC USA
    The ceiling.....
     
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  9. Coolhandjjl

    Coolhandjjl

    Oct 13, 2010
    Appleton
    The width of the 810 configuration helps push bass frequencies forward, technically known as baffle step compensation. A skinny enclosure for bass would result in a loss of that. For coupling and bass response, there's really no reason to go more than 2 drivers high. 4 drivers high is cool because that way, drivers are closer to your ear so you can hear them better. Some 810 configured cabs will low pass one vertical row at approx 500Hz so it won't acoustically interfere (comb filter) with the other row at frequencies above 500Hz. (That's also why several subs are often stacked horizontally, as the frequencies they cover will not comb in the horizontal plane.)
     
  10. Oddly

    Oddly

    Jan 17, 2014
    Dublin, Ireland.
    What if it's an outdoor gig?
     
  11. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Any examples of 810 cabs that do this?
     
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  12. Coolhandjjl

    Coolhandjjl

    Oct 13, 2010
    Appleton
    One of the Barefaced offerings.
     
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  13. john m

    john m Supporting Member

    Jan 15, 2006
    Cool
     
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  14. two fingers

    two fingers Opinionated blowhard. But not mad about it. Inactive

    Feb 7, 2005
    Eastern NC USA
    Paging @agedhorse

    What are your thoughts on two vertically-stacked 8-10 cabs? (Mechanical/gravitational issues notwithstanding....:D)
     
  15. JWH91

    JWH91

    Sep 30, 2017
    Brooo lol you know I mean down the line. We have a 10ft hauler. Why not have two 8ft stacks, slender and tall as hell, I have my head and effects in a tour rack anyways, or will have. Hasn't came in the mail yet lol
     
  16. JWH91

    JWH91

    Sep 30, 2017
    Ah building codes deem that common household ceilings must be at least 8 feet tall, so I'd be okay
     
  17. JWH91

    JWH91

    Sep 30, 2017
    Whoa. Where can I go further into detail about this? I was thinking (from bottom) 15/1212/410 then Horn and tweeter, all stacked vertically, 2 separate inputs 15 and 210 for one crossover, 1212 and 210 for the other. Would that be feasible for the frequencies?
     
  18. Jeff Scott

    Jeff Scott Rickenbacker guru..........

    Apr 11, 2006
    Out there!
    Same answer. ;) Just make sure you have adequate scaffolding.
     
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  19. JWH91

    JWH91

    Sep 30, 2017
    Don't forget they'll be split! Lol so roughly 13" wide and 16" deep from what I usually see 810 set up as, oh also about 93" in height and maybe over 200lbs:cool:
     
  20. micguy

    micguy

    May 17, 2011
    I'm an Acoustical Physicist, so we'll talk about whats ideal here, forgetting practicalities for a bit, if that's OK. Acoustically, the taller you go, the better. Actually, the ones above your head would cover the audience better than those behind you, as your body won't be blocking the mids and highs from them. That's part of what was great about the Greatful Dead setup - its height meant the performers weren't blocking the high frequency sound. If you have to limit your stack to, say, 5 feet high, acoustically you'd be best off with the stack starting at about your ear height (so you could hear yourself) and...going up from there.

    Ideally, if you stack from floor to ceiling, the reflections from the floor and ceiling make the array "look" even taller, which is this case, is a good thing - picture the ceiling and floor as mirrors, and the reflected speakers act (acousticlaly) just like what you'd see in a mirror, if that makes sense. Bass varies in a venue in 3 dimensions. If you stack from floor to ceiling, you reduce the variability to 2 dimensions. If you cover an entire wall with bass cabinets, you make a 1 dimensional situation, which would be killer in a lot of ways. Plus it'd just look awesome.

    Then again, the taller you go, the more your should pay attention to how well they stack - some sort of nesting/locking brackets would be a very good idea for anything taller than you, especially since the things vibrate.
     
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