Speaking of hanging speakers from the ceiling that’s not a terrible idea. I suspended LS3/5a speakers from eye hooks in the ceiling using bungee cords of just the right springiness. That was forty years ago.
DIY speaker isolation base for a wood floor
A definite sonic improvement in tightening up the bass.
1. Start with 4 aluminum cones. I used some old Mod Squad Tip Toes.
2. 16x16 slab of granite.
3. 1/8 cork.
4. 1/2 inch neoprene rubber.
5. 1/8 cork.
6. Top with another 16x16 slab of granite.
7. Enclosed with a wood cradle to hide the mechanism.
The granite is from scraps from a shop and was cheap. The added 1/4 inch of neoprene to 1/2 inch thickness did help. Let me hear your thoughts.
1. Start with 4 aluminum cones. I used some old Mod Squad Tip Toes.
2. 16x16 slab of granite.
3. 1/8 cork.
4. 1/2 inch neoprene rubber.
5. 1/8 cork.
6. Top with another 16x16 slab of granite.
7. Enclosed with a wood cradle to hide the mechanism.
The granite is from scraps from a shop and was cheap. The added 1/4 inch of neoprene to 1/2 inch thickness did help. Let me hear your thoughts.
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- 173 posts total
You will find that Ethan gets 0 respect here from certain people. I am not one of those people. I don’t agree with him on everything he says, but more often than not he is right. Is he completely right here? While I think he did his best to measure, I am not sure metrology is his strong point, and as he admits, it is a difficult measurement due to consistent positioning. A THD or IM measurement would be less sensitive to position and yield more repeatable results. He was only measuring how the speaker behaved, not if floor coupling was at all a factor. For the frequency response, it is just not an accurate enough measurement in his environment. If you look closely at the impulse responses, for which the resolution is very poor in both the temporal domain and the SPL domain, there does still appear to be noticeable differences. Is height a factor? Maybe. I would have like to seen a measurement farther as well to take into account potential floor interaction (or lack thereof). One serious issue in the Townsend video is they only take into account the motion of the very light speaker cone w.r.t. how the cabinet would move. This is an incorrect model as it only takes into account reactionary mass (sort of like a rocket where you are "throwing" mass so to speak). In a speaker, the air is a mechanical loading. You are not just moving the cone, but moving the air, and in front of the cone, pressurizing it, so the mechanical force is more than just the mass of the air as well. Put your hands on a wall when loud bass is playing. You can feel it. That is the energy that cone is transferring. blueranger OP636 posts01-04-2020 3:11pmInteresting article from a snake oil sleuth. I have wondered too if the change was somewhat due to speaker height. I swear my DIY speaker isolation base made a worthwhile difference when I played Madonna’s "Erotoica" and Al Stewart’s "On the Border" The bass seemed better controlled and deeper. I dont want to think that the expense of time and 💰 money was wasted. That earlier video of the RMAF show was impressive. So according to the article he didn’t test that guys product did he? So I’m thinking maybe my DIY speaker isolation platform is making a small but positve step closer to audio nirvana. |
Can you explain how you have a damped buckling isolator ... and none of the issues damping brings to the table? I understand what a mechanical diode is.
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- 173 posts total