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KEF TDM 34DS Positioning

Discussion in 'Home Cinema Speakers' started by Plump, May 29, 2002.

  1. Plump

    Plump
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    Hello !
    I got some bonus at my dealers after some story with the sub so I am going to swap my Q15 on the rears with TDM34DS
    Any experiences which is best position for mounting them.
    I will attach picture with two options. All comments are welcome.
    I know Ward and Rhodes have the same rears, so gents, your opinion is asked
    Cheers
     

    Attached Files:

  2. Jase

    Jase
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    Hi Plump

    Of the two choices, the one on the right is better. You need to have the null (bass driver) of the dipole facing you to benefit from the "wraparound" effect. In an ideal world you would have the dipoles directly either side of your listening position, the null facing you so that the mid/tweeter drivers are firing forwards & backwards.

    Ideally they should be placed around two/three feet above your head.

    cheers
     
  3. Jase

    Jase
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    Also make sure you have the Left Dipole on the left etc

    The serial number will have an L or an R after it so you know which is left & right.
     
  4. Mark Ward

    Mark Ward
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    I've tried mine directly at the sides and think that is the best place for them, but because of doors & windows I can't keep them there. Of the 2 choices the one on the right is miles better.

    Jase's advice was invaluable when I set mine up.

    What height are you thinking of BTW? Mine are at seated ear height, but if I had the option I'd place them much higher up.

    Sound bloody great were they are mind you!

    I went Q15 to TDM34DS and the difference is staggering.

    My current 5.1 is here:- http://www.wcarrot.demon.co.uk/me/fivepointone.jpg

    Mark.
     
  5. Plump

    Plump
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    Thanks both!
    Mark, I will have them about 40 cm over the head, that's where the holes from Q15 are, and my wife's ultimatum was to cover them. But I think it will be just fine !
    All I need now is to fix them there before world championship begin! - - - Forza Poland - sorry Britts :)

    Thanks once again
     
  6. Mark Ward

    Mark Ward
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    How are you going to fix them, these babies are HEAVY. The supplied bracket will only work against a flat surface, not across a corner. Very tall stands is a possibility, speaker weight make this less safe.

    You could fix some MDF across the corner and put the brackets on that I guess.

    As for wife's ultimatum... We all know that one. Mine HATED the TDMs when I got them, and still does. She also still doesn't know I've bought a S/H Lex MC1 Yet! I should be getting it next week and I expect she'll notice the change in our bank account.

    "Change" being all that will be left in it :eek:

    Mark.
     
  7. Plump

    Plump
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    One friend's brother in law will weld some very strong bars for me, hopefully tomorrow (I will be making the plan in few minutes) , one side goes where Q15s were (still are) and another side to the side wall.
    Wall brackets will go onto the bars , speakers onto brackets
    He'll also have to figure out how to place distance holders to keep them vertical and tight.
    As favour back , he'll get Q15s (Am I crazy?, guess not)
    Lots of fun coming to me . . .

    p.s.Mark I guess your wife knows you well by now . . . I would not worry . . .
     
  8. Mark Ward

    Mark Ward
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    After 20 years she ought to.... But I still surprise her every now & then :devil:

    Mark.
     
  9. MoonsSpawn

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    Hi Guys,

    To change the subject slightly...ok, almost completely... how do you rate the TDM34's with non KEF THX ULTRA front speakers?

    I have a set of AVI Pro Nine's at the front and a couple of AVI Neutrons (monopoles) at the back at the mo, but was thinking about going down the dipole route for the rears.

    Obviously there may be a timbre matching prob..but I just thought I'd get me some opinions.

    Any thoughts?

    Cheers,

    Steve.
     
  10. Matt F

    Matt F
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    I use the TDM34s with non THX fronts but they are also KEFs - the 2-2s and the 100C and they use the same uni-q drive units as the TDM34s so tonal matching is very good - in fact KEF's home theatre matching guide recommends this set up.

    I would have thought, because they are fairly neutral and not in your face (because they are non-directional), they would also work quite well with front speakers from other manufacturers but you'll just have to try it.

    Plump - I have mine level with the listening position (or very slightly behind) but a foot or so above the listener - they sound wonderfull - wouldn't swap them for anything (okay maybe a TAG DVD32R).

    Matt.
     
  11. Mark Ward

    Mark Ward
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    Like Matt I'm using Kef Ref 2.2s Fronts with KEf Model 100 Centre and TDM34 surrounds.

    The tonal match is excellent, as it was with my previous Q55 fronts.

    I don't think there is so much of an issue with dipoles, or maybe it just doesn't seem an issue with these particular Di-poles.

    Mark.
     
  12. MoonsSpawn

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    Thanks guys...I'll give it a whirl.

    Steve.
     

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