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Subwoofer Placement.

Discussion in 'Subwoofers' started by WBC, Jan 22, 2004.

  1. WBC

    WBC
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    Guys,

    Listened to a movie tonight (haunting) sub seemed very boomy. Could be the sub, wasn't particularly expensive....yammy 305. i think)

    Where would you place the sub?? Unfortunately, aesthetics over sound (where possible)!!!




    Thanks
    Stace
     
  2. Dimmy

    Dimmy
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    In the corner behind Sofa B, or to the right of the TV in the bay window, as both of these positions appear to be adjacent to two exterior walls, which tends to help strengthen bass definition.
     
  3. WBC

    WBC
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    Dimmy

    Don't wan't to spoil it, but it IS behind sofa B (Sorry, no prize for guessing correctly). I actually can't think of a better place to put it!!!

    Do you reckon a specific angle will be better than another. (I'm guessing you'll have an opinion!! ;) :laugh: ;) :D :rotfl:


    p.s. Matrix is 5hit!!! :rotfl: :rotfl: :rotfl: :rotfl:





    You know I'm jesting! :devil:
     
  4. Ian J

    Ian J
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    I would have suggested at the front soundstage somewhere if possible.

    The Haunting will catch out many subwoofers if played at anywhere near reference level.
     
  5. Mylo

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    I'm with Ian on this one. I would put the sub between either the front left or front right and the TV. To be honest I would expect the sub to be boomy where it is. The sofa will soften the sound slightly but not enough. This is based on my own experiences not any magazine theory.


    Regards, Mylo:smoke:
     
  6. Mr Cat

    Mr Cat
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    I had my sub (my room isn't that different to the diagram above) on the right hand side wall, about 3/4 of the way down.
    then last night I moved it inside my left speaker...there is a difference in the sound...not sure if it's better atm, but I'll have another listen tonight, some stuff didn't initially sound better, but the cure live did!

    p.s. how can I add an attachment when I reply.?
     
  7. Liam @ Prog AV

    Liam @ Prog AV
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    May sound daft but somthinfg as simple as the direction the exhaust port is aiming makes a difference! My stepdads Yammy sub sounded wildly different when changed from sitting pointing out from the wall, to running alongside it. Of course the biggest improvement was getting him to buy a Velodyne!!!
     
  8. WBC

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    Liam

    Please explain. The sub is positioned similar to the speaker on the diagram behind sofa B!

    Thanks
    Stace :D
     
  9. Liam @ Prog AV

    Liam @ Prog AV
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    Just meant rotating the sub 90 or 180 degrees can make a difference. With an exhaust port pointing at a wall, or in a corner you can get an overly "boomy" sound.. well that was my experience anyway :cool:
     
  10. WBC

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    I'll give it a go tonite!

    Stace :D
     
  11. Liam @ Prog AV

    Liam @ Prog AV
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    Good Luck!!!!!
     
  12. Dimmy

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    Stace - IIRC, the Yamaha sub you mention has a giant port on the front which air rushes in & out of.

    Behind your Sofa, I'd imagine this would be causing the problems, you might have to bring the sub out into the room & face the port into the room.
     
  13. Mylo

    Mylo
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    Hang on, you said put it behind the sofa???:confused:
     
  14. Dimmy

    Dimmy
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    Yes, I did suggest it, Stace wanted an 'Aesthetic' solution to the placement problem, so hiding it behind the sofa made sense...

    If rotating it behind the sofa, as Liam suggested, doesn't bring improvements, the sub will need to be brought out into the room.
     
  15. Mylo

    Mylo
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    Which is already suggested in the posts above.
     
  16. Dimmy

    Dimmy
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    And your point being?
     
  17. Mylo

    Mylo
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    My point being, we supplied information based on real life experience. I sometimes wonder if some people actually just regurgitate magazine information or just repeat other posts.


    Regards, Mylo
     
  18. Dimmy

    Dimmy
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    Even though I was the first person to post in the thread...

    Your wondering seemingly goes without need.
     
  19. FazerThou

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    Would a sealed unit be easier to place than a ported unit then?
     
  20. WBC

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    Thanks Guys,

    I'll play around. See what happens?

    :D
     
  21. FoxyMulder

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    I have mine at the front inbetween the 2 front speakers and in front of the centre speaker, its a REL Q201E and unfortunately i just don't think it can handle the bass of The Haunting, i get major cabinet rattle and distorted bass and it's very very annoying, other than selling my subwoofer does anyone have any tips ?
     
  22. Ian J

    Ian J
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    Don't play The Haunting.

    Seriously, there are one or two films that contain very deep and powerful bass such as that one, the beginning of Toy Story 2, depth charging in U571 and small subs can't cope with that type of sound at reference level and you shouldn't really expect them too.

    Assuming that it is set up and positioned optimally the only alternative is to turn down the volume when playing those few scenes.
     
  23. WBC

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    Guys

    Would it make more sense for me then, (as from an aesthetics point, I won't get away with the sub in the bay) To build a new TV cabinet (shown crudely below) to put the sub up front??

    Will this make much difference?

    Will it affect the centre speaker or TV?? (Are Subs magnetically sheilded?)

    Thanks
    Stace

    :D
     
  24. WBC

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    Anyone seen Retro?

    Views on the above would be good!!

    Thanks
    Stace :D
     
  25. Malky1903

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    I had my subwoofer under my TV for a while and ended up with pretty rainbow colours all over my TV screen. Switched the TV off overnight and the next day, everything was fine even though the sub's manaul clearly states not to put it anywhere near an amp or a TV. I have since rearranged my living room and my sub is between my front right speaker and my TV. It sounds pretty good to me where it is now :)
     
  26. ReTrO

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    Only one issue with the plan (haing only just looked at the picture above). What driver/s will you be using, they will almost certainly have to be magnetically shielded.

    The lower cabinet will have to be well braced, but if it is it will be very heavy which will certainly support the TV well.



    Love the idea though!


    (ReTrO now goes to thread the start of the thread to see if he's been stating the obvious.)
     
  27. ReTrO

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    Now read the thread.


    How wide is your TV?

    If it's wide enouigh you could eaily accomodate a pair or trio of drivers into the cabinet, may sound overkill and cost abit, but would sound pretty good, and you'd be able to acheive good SPL's.

    I'm looking forward to a TV stand sub thread in the DIY forum. :D
     
  28. WBC

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    Guys

    Thanks for the replies, All and more advice is welcome!!!

    The TV is 32" and at present I was kinda thinking of putting the sub (Yamaha YST-SW305) on its side. It would have enough room to sit comfortably.

    The documentation doesn't mention whether it is or isn't magnetically shielded. Are subs as standard?? It does mention low bass frequencies may mess with a TV picture, whatever that means:confused: .

    Any ideas?

    Thanks
    Stace :D



    edit *************

    Just found this marketing garb on the web...

    200-watt amplifier, dual spruce-cone drivers
    Advanced Yamaha Active Servo Technology maximizes the speaker's strength and frequency response
    Magnetically shielded for distortion-free placement near TVs or computer monitors
    Auto power on/off, 40 to 140 Hz variable high-cut filter, volume control, and phase normal/reverse switch
    20 to 160 Hz frequency response for deep, house-shaking bass


    Suggest's it is shielded So what do you think?
     
  29. ReTrO

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    I'd be tempted to take the driver and amp out of the current enclosure and put them into a new one in the stand.

    Otherwise just make sure the sub is well secured into the stand and has room fo the amp, driver and any ports to breathe properly.
     
  30. shodan

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    My sub is about 3 ft away from the tv, but when I'm watching a movie at anything approaching decent levels of sound, the bass makes the tv picture flicker! I'm kinda scared that it's going to blow the tube (Ooerr missus!!!) or something like that one day!
     

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