Question BK Monolith DF Granite Plinth Question

Discussion in 'Home Cinema Buying & Building' started by WillSwan, Jun 30, 2015.

  1. WillSwan

    WillSwan
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    Hi,

    I have just ordered a new BK Monolith DF sub, estimated delivery this Friday and cannot wait!

    I got the DF rather than the FF for a couple of reasons, firstly being I am tight on space and the slight shape difference between the two favoured the DF for where I want to put it, and secondly I have a 2 year old who likes to hide small toys.....!

    I have a question about the sub itself if anyone can help, which is: what is the distance between the feet?

    My reason for asking is because (even though this is going downstairs) I have a raised floating joists, with a hardwood flooring directly over it so I am concerned that being DF the bass may resonate/distort, therefore I want to get a couple of granite chopping boards to put underneath it - and I need to make sure I get the correct size... from somewhere like Argos.

    Would anyone have any recommendations for this? A brand/type of chopping board that's worked in the past? I assume two pieces of granite would work as well as one large piece (I imagine I wont get a single chopping board big enough!).

    Thanks for any help.

    Will
     
  2. Gaspode_TWD

    Gaspode_TWD
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    Hi Will. I think you're worrying unnecessarily. I'd suggest you try it first to see if you have a problem. IF you have a problem try an off cut of kitchen worktop first to see it that cures the problem (its much cheaper and will help you decide if its the direction for you).
     
  3. WillSwan

    WillSwan
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    Hi mate, thanks for the response, I did wonder if I may be over thinking it.... On most related posts I have read people seem to have issues with DF subs on joisted floors with laminate. Mine is a very thick solid wood floor over joists (must be 35-40mm thick - was in when I bought the house), its laid directly on the joists. Maybe this will be ok...?

    You're right though I should see how it sounds, in my head I was thinking that I may 'think' it sounds great, but with a plinth it may sound much better - and I wouldnt know that until i tried it....if that makes sense.

    Anyway I cant wait to get the monster, see what all the fuss is about!

    Cheers.
     
  4. shortyav

    shortyav
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    I've never had anything but pleasing results on granite/marble bases. Isolate the base with sorbethane if you can get it blue tak if you have to then place the box on the plinth. This will hopefully tighten response and isolate the speaker from the floor somewhat. If you can go to a granite place and see it they can help with a worktop offcut failing that I usually get single tiles from a specialist tile shop that have just a few of a style left. See what's about. If you don't have to outlay too much it's totally worth the experiment.
     
  5. shortyav

    shortyav
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    I wouldn't use chopping board unless it's big and heavy, granite worktop probably far better, and I would only use one piece, never two as using two pieces can introduce unwanted movement. What your trying to achieve is an isolation of one surface to another. Whatever the result, you should notice a difference. Wether the result is preferable to you is another matter. For me subs on concrete rather than joists always sound a bit tighter
     

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