Speaker angling help

Discussion in 'Audio Hardware' started by nola27, Dec 7, 2017.

  1. nola27

    nola27 Member Thread Starter

    Location:
    texas
    I like to have my speakers kind of like a time-phase correct angle if its possible to do.

    speakers- Nola Boxers
    stands- Pangea Audio DS400 (24")

    stands are spiked through carpet to concrete floor, and the speakers rest on blu tack. I tried adjusting spikes but their respective lengths aren't long enough. any ideas for the top plate other than blu tack to angle them?
     
  2. Mike from NYC

    Mike from NYC Forum Resident

    Location:
    Surprise, AZ
    Considering the speed of sound is about 1088 feet per second, give or take, how much difference do ya think you will hear? Personally I think time-phase is BS and just another selling point.

    I'd be more concerned about sound reflections
     
    Fishoutofwater and Manimal like this.
  3. Dave

    Dave Esoteric Audio Research Specialist™

    Location:
    Greater Vancouver
    Does your manufacturer recommend a correct time phase angle for your speakers or are you chasing just better? If the latter, angle them using a level and tape measure to be exact and give it a try. It will either sound better, worse or indifferent.
     
  4. jupiterboy

    jupiterboy Forum Resident

    Location:
    Buffalo, NY
    I would focus on frequency response. I've only seen two speakers that could make a time aligned impulse response. Many designs have a feature where you can move the tweeter, but as mentioned, sound moves fast, and if you are getting a first reflection i the mix it gets difficult. Phase accuracy I tend to like, and minimum phase designs are easier to drive.

    I use a tape measure when I do audio measurements to make sure the drivers are the same distance from the mic. My head is seldom in the exact same position when I listen.
     
  5. nola27

    nola27 Member Thread Starter

    Location:
    texas
    just got an email back from Carl at Nola and he says the stands should be at least 26" tall so I'm a few inches short. guess I'll have to find some longer spikes or a different method to get them up.
     
  6. jupiterboy

    jupiterboy Forum Resident

    Location:
    Buffalo, NY
    You want the tweeters hitting at ear height. I have some custom Skylan stands, but you can build up with blocks under the spikes to experiment and get it to your liking.
     
  7. nola27

    nola27 Member Thread Starter

    Location:
    texas
    do you think a concrete paver would suffice since the spikes already are through the carpet to our concrete floor?
     
  8. jupiterboy

    jupiterboy Forum Resident

    Location:
    Buffalo, NY
    i think that would be fine. You have to account for the height of your seating position. I have a long torso, my wife's is short. I split the difference. Get the basic frequency response and imaging like you like it. Obviously, the tweeter response drops off the farther you are off axis. Live with it this way and that. If you need new stands, wait until you are confident about what you want. Clearly the layer of carpet between slab and slab is going to damp the response somewhat, but work with what you have for a while. That's what I would do.
     
  9. Kyhl

    Kyhl formerly known as Strabo

    Location:
    Savage
    You're not going to get there unless you start with a speaker designed to be time and phase aligned. Only a handful are. Are the Nolas time alingned? I don't know.
     
  10. nola27

    nola27 Member Thread Starter

    Location:
    texas
    good advise, I will look for a good paver or......a piece of granite or a solid piece of maple maybe?
     
  11. nola27

    nola27 Member Thread Starter

    Location:
    texas
    no they aren't designed that way. I'm just going to raise them a few inches now that I heard from Carl from Nola.
     
  12. Old Audiophool

    Old Audiophool Active Member

    Location:
    Melbourne, Fl.
    I had the same problem, tweeters too low, what I did was add the Iso Acoustics Medium Isolation Stands (see below) to
    the top plate of the Pangea stands (perfect fit) and you get both the isolation and the additional height. The speakers were more focused with the addition.

    https://www.amazon.com/IsoAcoustics...512713701&sr=8-1&keywords=isoacoustics+l8r155
     
    jupiterboy and 33na3rd like this.
  13. nola27

    nola27 Member Thread Starter

    Location:
    texas
    looks interesting, how stable are the speakers from sliding off on those? the only reason I ask is because my dog can get a little ruff at times and worried if she happens to bump into the stand.
     
  14. jupiterboy

    jupiterboy Forum Resident

    Location:
    Buffalo, NY
    Another thought, you could angle them up slightly depending on how far away the listening position is.
     
  15. nola27

    nola27 Member Thread Starter

    Location:
    texas
    hi jupiterboy, this is what my initial thoughts were to do but the spikes aren't long enough to get any realistic angle to them. I lowered the rear ones all the way down and the fronts as far out as they would go without being wobbly. the speakers sit on the top plate with blu tack in the corners. I'm thinking maybe if someone sells a longer spike or getting some pavers, wood plinths, or marble to set the stands on. I checked Mapleshade but they are way out of my league with their prices.
     
  16. Kristofa

    Kristofa Forum Resident

    Location:
    Eugene, Oregon
    Do you suggest just doing the opposite with tower speakers with the tweeter higher than ear level? Raising the back?

    I am interested in the Tekton Double Impacts, but they are pretty tall.
     
  17. nola27

    nola27 Member Thread Starter

    Location:
    texas
    I guess that all depends. my goal is to change the soundstage a bit higher so when for an example when I hear someone sing I don't want it coming from a 3-4ft. plane I want it as if I'm sitting and "looking" and hearing them at their natural height, if that makes sense.
     
    Kristofa likes this.
  18. jupiterboy

    jupiterboy Forum Resident

    Location:
    Buffalo, NY
    I'd imagine you would be creating an earlier first reflection off the floor. If the speakers are tall, maybe they are designed to generally fire off axis on the tweeters. Could be a design feature.
     
    Kristofa likes this.
  19. Kristofa

    Kristofa Forum Resident

    Location:
    Eugene, Oregon
    That does make sense, and I also like a phantom center image being a bit higher and wider.
     
  20. Kristofa

    Kristofa Forum Resident

    Location:
    Eugene, Oregon
    Yes, I also feared the earlier first reflection issue since the 10” drivers are so low within the tower. It appears I have little to worry about. Thank you all and back to our regular programming. :)
     

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