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Sub isolation - just one question :)

Discussion in 'Subwoofers' started by badhairday, Oct 24, 2005.

  1. badhairday

    badhairday
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    Which way is the correct placement of the squash ball in the attached diagram?


    Prepping my room for the BKXLS200DF arrival!

    BTW this place is a gem!


    :)
     

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  2. Jeff

    Jeff
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    I would go for as shown on the right and glue the squash balls onto the platform or the vibrations could make the sub go crashing.
     
  3. badhairday

    badhairday
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    Good point - never crossed my mind!


    They will be mounted on a marble chopping board

    and plan to adhere/fill the balls with silicone sealant

    for that extra rigidity as I understand the BK XL200

    weighs in at 18 kg... :eek:
     
  4. binbag

    binbag
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    As on the right, inverted, sub spiked into the balls which were filled with silicone gel. Worked great at all but the very lowest frequencies; alas it eventually succumbed to the weight & vibration.

    Now using a Kill-Vibe and experimenting with feet etc to get the sound 'just right'.
     
  5. badhairday

    badhairday
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    Cheers binbag - why wouldn't it work on the low frequencies?

    I was just thinking of placing the spiked sub onto the marble board and letting the squash balls underneath isolate from the floor....?

    It's all fun and games....

    :D
     
  6. binbag

    binbag
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    Vibration, maybe resonance. It just shook itself silly in the last half second of the LFE sweep.

    That was how I tried it at first. I got a far smoother sweep with the board inverted though.

    Tell me about it. I'm still adjusting to what the KV has done to the sound. At first I found it was too dead for my taste - particularily as the resonance from the floor had introduced a spatiality that I had never experienced from my level of kit. There's no doubt that this 6lb baking tray has let the sub 'go clean' lower and harder than before but I've been chasing that sonic openess that I had with my balls n' board.

    At least with a rattle you can hear something when it runs below your hearing threshold.
     

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