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  • My solution was 2 pieces of 3/4" plywood. Sorbethane feet. And Auralex foam. No complaints.

    Two other key aspects: using a KD120 and putting the throne on the floor not platform.



    Comment


    • Originally posted by kurth83 View Post
      My understanding of acoustic underlayments is that stone is about the worst material there is
      for impact noise reduction.
      I have been told that the stone alone will make no difference but once put on the mat in my picture, the mat will act like a spring and the mass of the stone will absorb the energy from the drums.

      I have listened with a stethoscope both on the counter top the drums stand on and the floor (both can be seen in my picture) and while the sound from the drums is loud when you listen at the top you cannot hear it when listen at the floor. If this means that the neighbours cannot hear it remains to be investigated.

      More about the mat: http://www.stepisol.se/stepisol(1).asp

      Johan
      www.johanhackman.se Roland HD-3

      Comment


      • Originally posted by wolfereeno2 View Post
        .... And Auralex foam.
        As in something from these options? http://www.musiciansfriend.com/aural...e=60&v=g&Ns=bS

        Can you be more specific of exactly which one you used?

        Originally posted by wolfereeno2 View Post

        Two other key aspects: using a KD120 and putting the throne on the floor not platform.
        Why the throne on the floor and not the platform?
        8 piece DIY Acrylic http://www.quartzpercussions.com/, 2x2Box DrumIt5, Gen16 4xDCP, Acrylic&Gen16 Conversions http://stealthdrums.com/Home_Page.html, Sleishman Twin-QuadSteele hybrid http://drumagination.com/ , Gibraltar&DrumFrame rack, DW9502LB, Midi Knights Pro Lighting http://jeredsystems.com/index.php
        http://www.airbrushartists.org/DreamscapeAirbrushRealm

        Comment


        • Originally posted by Johan Hackman View Post
          I have been told that the stone alone will make no difference but once put on the mat in my picture, the mat will act like a spring and the mass of the stone will absorb the energy from the drums.

          I have listened with a stethoscope both on the counter top the drums stand on and the floor (both can be seen in my picture) and while the sound from the drums is loud when you listen at the top you cannot hear it when listen at the floor. If this means that the neighbours cannot hear it remains to be investigated.

          More about the mat: http://www.stepisol.se/stepisol(1).asp

          Johan
          Ahh, that makes sense, our work filter prevented me from seeing the images so I didn't know where in the build
          the stone was. If it was on the bottom it wouldn't help much, but up higher yeah, this thread says the same thing
          about using heavier MDF board for the same reason.
          TD-9, PDX-6 snare, Alesis Control Pad, Alesis Sample Pad, Iron Cobra RG, Triggera Krigg, FD-8, Koby Nano Pads.
          Ultrasone 780 cans, world famous "silence is the golden rule" riser... (BMW G650GS, Yamaha SV250).

          Comment


          • Originally posted by kurth83 View Post
            Now that I write this, I am wondering why I didn't try the standard foam layers for my riser,
            for $30 I could have bought enough for 20 layers of the stuff. A cork roll is closer to $70 but buys enough
            for a foot thick layer in my application. Maybe somebody will give these a try. :-)
            I'm going to be building a riser pretty soon, and at that price I may as well give it a go! I noticed you're in the Bay Area as well, do you know of a good local source for the materials you'd want me to try?
            Gear: Trapkat, Superior Drummer 2.0, Pearl Eliminator P2002C double bass drum pedal, Roland KD-120, Tama HP300 Cobra Jr., Alternate Mode eHat

            Comment


            • My contractor that did the floor sent me here:

              http://www.hdsupplyrepairandremodel.com/

              They have the cork and the soft-stride foam there in rolls.

              The cork is 1/4" thick, the soft-stride I think is either an eight or a sixteenth of an inch thick.
              TD-9, PDX-6 snare, Alesis Control Pad, Alesis Sample Pad, Iron Cobra RG, Triggera Krigg, FD-8, Koby Nano Pads.
              Ultrasone 780 cans, world famous "silence is the golden rule" riser... (BMW G650GS, Yamaha SV250).

              Comment


              • Originally posted by kurth83 View Post
                My contractor that did the floor sent me here:

                http://www.hdsupplyrepairandremodel.com/

                They have the cork and the soft-stride foam there in rolls.

                The cork is 1/4" thick, the soft-stride I think is either an eight or a sixteenth of an inch thick.
                Cool. I'll look into that. What sort of build were you envisioning? I'm planning to get some pieces of 3/4" MDF cut and sandwich iso feet between them. Would the foam and cork be layered on top in alternating layers?
                Gear: Trapkat, Superior Drummer 2.0, Pearl Eliminator P2002C double bass drum pedal, Roland KD-120, Tama HP300 Cobra Jr., Alternate Mode eHat

                Comment


                • Originally posted by stillcenter View Post
                  Cool. I'll look into that. What sort of build were you envisioning? I'm planning to get some pieces of 3/4" MDF cut and sandwich iso feet between them. Would the foam and cork be layered on top in alternating layers?
                  That sounds about right, mine has two layers of sorbothane feet between MDF boards, with the memory foam on top.
                  Using the cork/soft-stride stuff in alternating layers might work in place of the memory foam.

                  This is the soft-stride stuff:
                  http://www.robertsconsolidated.com/p...ub=13&prod=160
                  TD-9, PDX-6 snare, Alesis Control Pad, Alesis Sample Pad, Iron Cobra RG, Triggera Krigg, FD-8, Koby Nano Pads.
                  Ultrasone 780 cans, world famous "silence is the golden rule" riser... (BMW G650GS, Yamaha SV250).

                  Comment


                  • I'm a little stumped on why memory foam would even be considered for this. Once it compresses....it's useless. Also unless you get some heavy duty high quality foam it wouldn't be very stable....and it doesn't "remember" very well either.
                    8 piece DIY Acrylic http://www.quartzpercussions.com/, 2x2Box DrumIt5, Gen16 4xDCP, Acrylic&Gen16 Conversions http://stealthdrums.com/Home_Page.html, Sleishman Twin-QuadSteele hybrid http://drumagination.com/ , Gibraltar&DrumFrame rack, DW9502LB, Midi Knights Pro Lighting http://jeredsystems.com/index.php
                    http://www.airbrushartists.org/DreamscapeAirbrushRealm

                    Comment


                    • My tempurpedic mattress on a wood frame outperformed my dual-layer tennis-ball riser.
                      That little observation is what started this whole thing.

                      Memory foam comes in different densities, is documented as a sound proofing material
                      (not commonly used because of weight and price, but is known to be effective).
                      I only tried it on a lark, I didn't know any of that when I did the experiment.

                      Memory foam does not compress under the weight of a drum kit if you have a stiff surface
                      on top to distribute the weight and a dense enough foam to bear the load.
                      You do have to balance the weight in the center however, which is probably the
                      only real drawback other than price. 5 lb foam easily supported my 150 lbs
                      on a 2'x4' surface area with very little compression.

                      My larger platform doesn't wiggle any more than some tennis ball riser demos I have seen.
                      (One of Nathan's comes to mind, where he complained a bit, mine wasn't that bad from what I recall,
                      memory foam compresses slowly, so it doesn't bounce like tennis balls will).

                      Next up is the cork/soft-stride experiment.
                      I hope that one works, because it avoids the stability and price problems of memory foam.
                      It would be nice if we can tell people add an inch or two of that stuff above or below your tennis
                      ball riser and get a big improvement.
                      Last edited by kurth83; 02-28-13, 07:04 PM.
                      TD-9, PDX-6 snare, Alesis Control Pad, Alesis Sample Pad, Iron Cobra RG, Triggera Krigg, FD-8, Koby Nano Pads.
                      Ultrasone 780 cans, world famous "silence is the golden rule" riser... (BMW G650GS, Yamaha SV250).

                      Comment


                      • Re which Auralex foam - I used Platfoam. Unfortunately it only comes in bulk. I used about 6 pieces and sold the rest on craigslist.

                        As for why not to put the throne on the platform. That's a great question and is key to the whole platform working! (others have posted this info here too but it's worth reiterating).

                        Between the throne and YOU that's a lot of weight added to the platform. The added weight compresses the springs/foam/tennis balls whatever and then makes the whole suspension mechanism more rigid. More rigid = less isolation.

                        I saw one pic of a platform in this thread that had a bookcase on it. I would strongly recommend taking the bookcase off the platform! Same logic.

                        An added benefit of not putting my throne on the platform is I can make the platform smaller. You just need a throne that goes high enough. If you sit high, that could be a problem.

                        Comment


                        • Cork and other sound deadening floor materials

                          Did you end up Using the cork and other floor stuff from h d supply and did it work

                          Comment


                          • Hi, I have noticed that in all these postings regarding impact noise etc, that there is no hard data or decibel / noise levels measurements going on. I reckon you need to obtain a decibel meter and "see" what differences are resulting from configuration changes to any of these platforms / risers etc... That would remove any differences in perceived noise levels between different people, I mean, what you think is loud, may not be what I think is loud. Especially if I have been complaining to you about it !!!

                            Also might be an idea to obtain copies of your Local Authority Noise Policy to find out at what decibel levels your neighbours have good reason to even start complaining. Bear in mind that when someone complains about noise problems, a psychological change in perception of that noise occurs, they start to focus upon it and perceive it to be louder then they become even more annoyed about it. This can negate any improvements you have made in reality.

                            Hmmmmmm.

                            Comment


                            • Originally posted by hemiboy View Post
                              Did you end up Using the cork and other floor stuff from h d supply and did it work
                              Haven't been able to yet. It's gonna be a few weeks. I'll post an update when I get the time to work on this!
                              Gear: Trapkat, Superior Drummer 2.0, Pearl Eliminator P2002C double bass drum pedal, Roland KD-120, Tama HP300 Cobra Jr., Alternate Mode eHat

                              Comment


                              • Originally posted by Dryden View Post
                                Hi, I have noticed that in all these postings regarding impact noise etc, that there is no hard data or decibel / noise levels measurements going on. I reckon you need to obtain a decibel meter and "see" what differences are resulting from configuration changes to any of these platforms / risers etc... That would remove any differences in perceived noise levels between different people, I mean, what you think is loud, may not be what I think is loud. Especially if I have been complaining to you about it !!!

                                Also might be an idea to obtain copies of your Local Authority Noise Policy to find out at what decibel levels your neighbours have good reason to even start complaining. Bear in mind that when someone complains about noise problems, a psychological change in perception of that noise occurs, they start to focus upon it and perceive it to be louder then they become even more annoyed about it. This can negate any improvements you have made in reality.

                                Hmmmmmm.
                                I agree that objective measurements would be helpful. However, I suspect part of the reason there has been no hard data is it would require neighbors that are willing to spend the time helping obtain these measurements. Also, numbers obtained in one apartment will be different in another apartment due to differences in construction, etc. Not to mention the fact that loudness, which is influenced largely by psychoacoustics, is not the same as dB SPL, which is a purely objective measure of sound pressure (and can be influenced further with different weightings, integration times, etc).

                                So in order for any measurements to be useful, there has to be an agreement on what to measure, how to measure, and where to measure. Then someone is going to have to build and test a number of different risers in the same apartment. All in all, not a simple undertaking.. I don't know about y'all, but I don't have this sort of free time.
                                Gear: Trapkat, Superior Drummer 2.0, Pearl Eliminator P2002C double bass drum pedal, Roland KD-120, Tama HP300 Cobra Jr., Alternate Mode eHat

                                Comment

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