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Actually the speakers produce enormous low end for their size. And I’m not after solving that kind of low end, just unamplified drum strikes. But I am testing with that sort of low end thinking if I can solve some of that, then the drums will also be more blocked. As for the sheets, the thing...

My process of elimination continues. I’ve now got a good door with a tight seal and it works well, so I’m checking that off. I now know that chopping a hole in the wall for a window AC doesn’t work and I undid that. My space is now near air tight, so a portable AC will not work and would also...

Thank you. If I could do it over, I would pay more attention to that. I expected that the pink noise test would include 50hz. I can say that going by my ears, low end bleed into the house is equally offensive for mounts and stands.

They are Rockville DPM6W. The test was intended to compare transmission through the mounting points vs stands.

If I understand you correctly, you’re saying using a fixed mount is better than allowing it to move a bit on some resilient type mount. Is that because the movement of the drivers can be slightly cancelled out by a flexing mount?

Here is a video of my door in action. I really don’t know if this result is good, bad or just ugly. How does it compare with spaces you may have built? Trying to determine if I have got all I can get or if I should keep chasing improvements. The short answer is I’m seeing a 42db reduction from...

Yes, as soon as I can decide on a unit I’m going to go with one. I’ll definitely consider the LG as I’ve heard good things about it.

Taking into account the possibility that fixtures or screws driven into the framing of a structure may transmit sound through the sheathing or drywall and outside the structure, I did a test. Very unscientific and maybe it means nothing but I thought it was interesting. My speakers were mounted...

As always, thank you for the reply. This would be a last resort, but I could remove the screws on the innermost and outermost layers, except for the ceiling. While GG may not be glue, once it cures, the drywall is permanently bonded. I tried to separate a piece and it is not possible. So I...

I’m doing tests on my project and will post results in my other thread, but I wanted to ask you about the screws. I am not concerned about noise getting in, I only want to block noise from getting out to whatever extent I can do that. So, in regard to noise transmitting out, are the screws...

Thanks for that info it’s helpful. What?!! I can’t get 100%? Well that’s it then I’m burning the damn thing down. ?

Yeah, not only was it a hell of a lot of work, it was all done in the 97 degree summer heat of south central Florida. I started it on July 22 and the construction was complete about a week ago. It was a full time job seven days a week. Of course the work continues now chasing whatever...

All I’ve done is measure some hard kicks and snare hits inside. Those are just over 100db. I can’t find any data that sound travels through the slab. Most of what I’ve read says a concrete slab absorbs. If I could be sure it would help, I would put some neoprene or some other material under...

The Drum Bubble The room’s only purpose is to contain my drum kit and allow me to play with some privacy and not intrude on my family or the neighborhood. Here’s what I built: a 7’x9’x8’ room in a room, 2”x4” framing with rockwool in the bays, on the concrete slab of my garage. The entire...

Mass Loaded Vinyl pound for pound is the thinnest material that actually works. 1/8” has an STC of 26. Expensive.

Low frequencies propagate through a given material better than high frequencies, so imo testing the db of a kick drum to a cymbal isn’t useful.

I didn’t do any glass, but if you need glass, that seems like a good design.

Just as you can place a sub woofer almost anywhere in a room and it is still heard, the same with low end from a drum set or any low frequency sound source. Low frequencies are not very directional.

Having just built a dedicated drum space (which I have named the Drum Bubble), I can offer this in regard to soundproofing (not acoustics): your room will only be as good as it’s weakest link. If you treat only one wall, you may be disappointed with the result. Sound has a way of finding every...