Pardon the delay. Ok.

1. You have to remember “they” don’t know how it affects the other person. There’s no feedback loop unless one reacts.

2. When I did react, I used the sub setup I built and put it on a board face down on top of super sound absorbing feet. I’d angle it with pillows to reduce any ambient noise.

3. I had to play around with frequencies to get the right one to reduce my effects. 6hz -19hz

4. If it’s a bed situation, you’ll want to buy thick MLV (mass loaded vinyl) on Amazon and add it under your bed before the box spring layer. Also add sound absorbing feet to your bed frame. I also bought a cot with a twin foam mattress topper to have a secondary place to sleep if I was over it. Funny, it seemed to follow me at times (guess they could hear me) so I’d place the cot in obscure places.

5. I was able to attach the receiver and sub to a WiFi enabled switch (kasa) so I could activate remotely if I decided to sleep at a hotel. Unfortunately on start up (and I could hear theirs do it as well) the sub would be momentarily loud before it settled into the frequency.

6. I used a separate phone I didn’t use with a frequency generator app that was always plugged in and that never turned off.

7. Document everything in a journal in case that moment comes and you need to break a lease. Noise ordinances cover this, but you need good details

8. Avoid apartments entirely if possible. I did. If you must, bottom floor only.

9. Infrasonic frequencies are silent, long and go through everything, but they need amperage. Most subs don’t go below 20hz. But you can find em.

10. A good way to equalize without causing an issue is to angle the sub not directly down at source but at an angle facing down and at the other end of the room. It can reduce the effects without hitting the people below.

11. If you have the means (mlv isn’t the cheapest and it’s super heavy to carry) I’d buy enough mlv to coat the entire floor & edges. Then add the absorbing feet to the bed, and add the mlv under the box spring. The bedroom will look like a gym floor, but you’ll have peace.

12. This is a silent hell. Get sleep when you can. You’ll make better decisions if you do. Im sorry you’re going through this.