Speaker placement

Discussion in 'Home Cinema Buying & Building' started by Mr_Wistles, Jun 23, 2015.

  1. Mr_Wistles

    Mr_Wistles
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    Afternoon all,

    I am currently planning a hc room in a new property I am buying. The room is 20x13. The screen will be in the centre of the 20 with the sofa directly opposite against the wall (non negotiable!)

    I am going for Dolby Atmos so will be going 5.2.1. My issue is where to place the rear speakers as the entrance to the room is in the bottom right hand corner.

    Where would be the best place for them?

    Please marvel at my skilled CAD diagram below.

    [​IMG]
     
  2. Roohster

    Roohster
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    Any chance of another pic of the room, as that one doesn't really give any clues as to what goes where?
    Even a pencil drawing photographed with your phone would do the job.
    Include doors, windows and furniture if possible.
     
  3. PSM1

    PSM1
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    You could place some dipole/bipole speakers on the rear wall each side of the sofa.
     
  4. Mr_Wistles

    Mr_Wistles
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    Thanks, here is another masterpiece: -

    [​IMG]
     
  5. Roohster

    Roohster
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    Much better picture ;)

    I agree with PSM1, bipoles on the back wall would probably be best.
    I'd probably move the front L&R a bit closer together, as it looks like they'll be firing into the two armchairs at the moment. Either that or move the chairs out of the "line of fire".

    What will you be doing about the overhead speakers?
     
  6. Mr_Wistles

    Mr_Wistles
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    Thanks, will have a look at those. What is the story on tripole speakers?

    I was planning on having some KEF in ceiling speakers installed. 2, in the centre of the room.
     
    Last edited: Jun 24, 2015
  7. Roohster

    Roohster
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    Tripoles go on the side wall, alongside the seating position.
    They have a monopole driver that (normally) points directly at the listening position, plus two drivers on the side of the cabinet arranged in dipole configuration.
     
  8. Mr_Wistles

    Mr_Wistles
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    Thanks, would they be a better option? Actually scrub that, wouldn't be possible.

    I will go with dipoles.
     
  9. Mr_Wistles

    Mr_Wistles
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    I am going to go with these: -

    Q800ds

    I will also have KEF speakers in the ceiling and the front 3 will be DALI Ikon MK2's.

    What height should these be mounted at?
     
  10. Roohster

    Roohster
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    There seems to be lots of different MK2s, which ones were you looking at?
     
  11. Mr_Wistles

    Mr_Wistles
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  12. Roohster

    Roohster
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    Ah right, was it the Kef Q800s you were asking about regarding height?

    KEF recommend 1.5 metres - 2 metres, I'd go with 2 metres.
     
    Last edited: Jul 28, 2015
  13. Mr_Wistles

    Mr_Wistles
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    Yes, the KEF. Thanks, never had dipole speakers before and was unsure.
     
  14. Mr_Wistles

    Mr_Wistles
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    Also thinking of introducing a BK Monolith+
     
  15. Mr_Wistles

    Mr_Wistles
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    Last edited: Aug 6, 2015
  16. MikeIOW

    MikeIOW
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    Anyone else think you should consider negotiating the non negotiable?
    Make the bay blacked out and have the screen there?
    (Of course I only ask as we are in a similar position only SWMBO wants the screen dropping down own our bay on your picture!!)
     
  17. Mr_Wistles

    Mr_Wistles
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    I had that in a previous property, I won't be able to convince her again!
     
  18. Roohster

    Roohster
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    Yep, side wall mounting is recommended for dipoles.
    I guess the best thing to do is try them out and see how they sound on the back wall.

    You could try mounting the speaker marked LEFT on the right, and vice versa if they don't sound right initially... this should position the "in-phase" side of the DS towards your seating position.
     
  19. Mr_Wistles

    Mr_Wistles
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    Annoying, I have already purchased the speakers but I can send them back.

    As they will be going at the back do you think I would be best of returning them and replacing with bipoles?
     
  20. Roohster

    Roohster
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  21. Mr_Wistles

    Mr_Wistles
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    I was just looking at them, I think they are the way to go.
     
  22. Mr_Wistles

    Mr_Wistles
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    They are unfortunately discontinued in my finish. They have been replaced with these: -

    Monitor Audio Bronze FX Rear Speakers

    The firm I bought the dipoles from are checking with KEF and seeing if they offer a similar product. From their site they don't appear to do bipoles.
     
  23. PSM1

    PSM1
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    You may not want to do this with your new speakers but it is fairly easy I believe to rewire a dipole speaker to a bipole as just a matter of reversing the cables around to put them out of phase. Taking the driver out and switching the cables should do the trick (that is all the switch on the MA speakers is doing anyway).
     
  24. Mr_Wistles

    Mr_Wistles
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    Yeah I was reading about that, don't really want to go down that route. I think the Monitor Audio speakers are the way to go, £600 cheaper also!

    Only problem is that I will now have three brands of speakers. DALI front 3, KEF in the ceiling and Monitor Audio at the back.
     
  25. Roohster

    Roohster
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    In an ideal world, you have the same make all round, but mixing up brands at the rear isn't too bad.
    Another option to consider is a pair of Kef T101s. Not sure how they'd work on a back wall but worth looking into.

    A pricier option is Dali's Ikon on-wall speakers.
     
  26. Mr_Wistles

    Mr_Wistles
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    I currently have a set of them, my existing setup is all Dali Ikon 6, I am trying to sell them in the classifieds at the moment.
     
  27. Roohster

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    Have you tried them out as rears before you sell them? ;)
     
  28. Mr_Wistles

    Mr_Wistles
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    I have them mounted on the sides in my existing cinema, I don't have a back wall in this one!

    I think I will keep them until I am moved in and play around. I may be able to find a way to get 7.2.1
     
  29. Mr_Wistles

    Mr_Wistles
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    The supplier of the KEFs called KEF technical support. They advised that the dipoles would be fine on the back wall. This is contrary to everything else I have read though so I think I will send them back and get the monitor audio dipoles.
     
  30. Joe Fernand

    Joe Fernand
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    How about a full on 'stealth' install with In-walls (Front and Rear) plus In-ceiling (Height)

    You can have Dipole/Bipole switchable In-walls on the rear wall to allow some experimentation.

    There are In-ceiling models with a more disperse sound optimised for Object based height channels too!

    Joe
     

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