Sub behind sofa?

Discussion in 'Subwoofers' started by fraggle, Jul 5, 2004.

  1. fraggle

    fraggle
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    Hi all,

    Anyone tried putting their sub behind the sofa?

    I've got a servo-15 and at the moment its nestling between the left front and the TV, but I'm about to get a plasma and with its stand it'll be wider than the TV and there won't be room for the sub.

    If I moved it to behind the sofa what difference in audio quality would there be?

    I use the sub for movies and music, cut off set to 50Hz and it blends in nicely with my mains, I don't want to ruin the balance but do want to move it.

    I've got a fourth shielded cable in the component lead going to the projector which is near to the subs new position which I could route the subs signal down so the wiring'll be a doddle.

    Any thoughs?
     
  2. fraggle

    fraggle
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    <fx : slaps head, moves thread to right forum, goes "Duh!" :) >
     
  3. Mylo

    Mylo
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    I take it the sofa is not right against a wall? What sort of space is there behind the sofa?
     
  4. Mr Cat

    Mr Cat
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    why don't you simply try it out..???

    then you'll soon know...
     
  5. Brogan

    Brogan
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    That's how we have ours set up.
    What's nice about it is the whole sofa shakes and vibrates which adds another element to the experience :D
     
  6. LV426

    LV426
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    It's where mine is. The simple (?) answer to the question, where is the best place for my sub, is......where it sounds best. This differs from system to system, and from room to room. Try it. Experiment until you have it where it sounds good and looks OK.
     
  7. Ettepet

    Ettepet
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    FYI: (and for what it is worth ;))

    On the SVS forum I just read a comment that having a sub behind you (behind a couch) is in fact the worst place to put it. You can find it: here:

     
  8. rags

    rags
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    I hope we are still talking about home cinema here :D
     
  9. Brogan

    Brogan
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    Oh yeah, that too...:D
     
  10. Stellavision

    Stellavision
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    I tried my ASW750 by the side of the sofa at the rear of the room today.
    I wasn't convinced at first, but after some tweaking with phase, delay and sub output I achieved what I thought was not a bad sound. The sofa did indeed vibrate a little more than usual and created a more involved experience. However, having all the sub 80 Hz frequecies coming from my left hand side did seem to create a slightly muddy tonality to the whole sound and it just didn't seem right.
    I moved the sub back to the front left hand side and the sound became much more punchy and defined.
    My sumary is that reasonable results can be obtained from rear sub placement, but my most preferable position was at the front.
     
  11. IronGiant

    IronGiant
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    So it's a bad idea to stick a sub immediately behind you, but to what extent does furniture signicantly interfere with the sub-woofer? I would dearly like to try my sub in a corner, but the only one I have available (for now) is behind my home cinema, which is set up in the corner with a large space behind it. Dragging that lot out of the way to try out a sub behind it is not something I would relish. If the sub is firing straight against a bit of furniture, surely that must affect its response?
     
  12. fraggle

    fraggle
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    Well I'll soon know.

    The sub will be behind the sofa firing across the back of the room. Since its only dealing with < 50Hz, directionality shouldn't be a problem, and since the amp takes care of the x-over there shouldn't be the same frequencies coming from the main fronts and the sub apart from at the x-over point.

    Mylo : we can have upto 3 feet of room behind the sofa, but I'm intending to have 1/2" gap from sub to wall and sub to sofa (amd possibly some sound deadening wadding stuffed in the gap from sub to wall if needed)
     
  13. Mylo

    Mylo
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    As it's firing sideways down the room I can't foresee much of a problem then Fraggle apart from guests pooping it when the (hidden) sub comes on line :D
    Downward firing subs would be more of a problem in my experience. As said above the only real way to tell is to try it.
     
  14. samhain

    samhain
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    If you have a sub behind you yet you have it set up so that it 'appears' that the bass is coming from upfront, then you have your imaging spot on.
     
  15. Barend

    Barend
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    Huh?
    :confused:
     
  16. fraggle

    fraggle
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    Well I've got the new cabinets and plasma in, sub now behind the sofa and wired up.

    *Ding!* It sounds great. The bass from the sub doesn't appear to be coming from anywhere, its just there and blends in with the other speakers perfectly.

    *Nice* :D

    Anyone with a sideways firing sub who's thinking of trying this I'd definitely recommend giving it a go. (My sub is firing sideways across the width of the room, not down the length of the room)
     

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