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RE: Felt to absorb tweeter reflections?

Hi
I would try to figure out what the 8k peak is from first, move the speaker to a neutral location like outside or the middle of large quiet room.
If it's still there when you move around in front,its not reflected sound then consider a series RLC tank with an 8 k notch.

If it's a lobe / directional then try;

If you have an electronic crossover handy, set up a band pass filter from say 6 to 12Khz then play pink noise through it (leaving the 8k much more audible).
Then walk around it, see if you can localize it, take a chunk of foam and see if you can find it blocking things off or absorbing. do not put foam anywhere you could see if you were looking through the driver mounting hole, if anything on your horn, continue the horn progression at the top and bottom with foam, that is the likely diffraction point on that shape.

If you measure, set up and rta when you do this and then you have a objective indicator when you hit gold with the foam or moving the mic around you may find a lobe or null (the two are usually found together)




Edits: 04/10/17

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