lcsaszar
New Head-Fier
- Joined
- Mar 2, 2007
- Posts
- 8
- Likes
- 10
Dear community,
I have a pair of Peerless PMB 100 orhodynamic headphones. I just checked with a swept tone and there is no audible output below 35...40 Hz. I came to the idea that the reason might be acoustic short circuit. They are, like most orthos, an open type. The actual drivers are round, and mounted in the headphone, but there is free space around the drivers. So the air radiated to the rear could return to the front using a short path still within the headphones, not exiting the rear mesh.
What if I fill the free space around the drivers with thick felt? Then I would prevent the acoustic short circuit. The air waves would exit through the rear mesh ro the room, and they could not find ther way to the front (facing to the ears). Is that a good idea, or will it break the tonal balance?
Thanks
I have a pair of Peerless PMB 100 orhodynamic headphones. I just checked with a swept tone and there is no audible output below 35...40 Hz. I came to the idea that the reason might be acoustic short circuit. They are, like most orthos, an open type. The actual drivers are round, and mounted in the headphone, but there is free space around the drivers. So the air radiated to the rear could return to the front using a short path still within the headphones, not exiting the rear mesh.
What if I fill the free space around the drivers with thick felt? Then I would prevent the acoustic short circuit. The air waves would exit through the rear mesh ro the room, and they could not find ther way to the front (facing to the ears). Is that a good idea, or will it break the tonal balance?
Thanks
