foofighter
Moonshiner
Foofighter -- interesting. Any measurements before/after on this mod?
Sorry but no measurements. Everything i wrote was based on listening impressions. I should say that i have pair of d220ti that is not yet treated this way but i've decided to do it the same way as Sync (project number 60) that i've posted pictures of. The cloth that he used in the part of the chamber just above the Ti membrane is cotton. One could use a bit of cotton wool just to se if that brings any sound improvement.
Everyone can try to se if this fits for him. In that case i would use some modeling clay in gaps of compression chamber inside. On the outside a lot of modeling clay as well.
That way if one is not pleased, nothing is ruined. You just demodify it and that is it. It costs virtually nothing. Knock on the back side of d220ti and on to the D250 or d2500ti to see for yourself. The difference is huge. Aluminium is material that does not resonate that easily unlike plastic.
I don't think that there will be some important changes in FR graph of modified driver. We used this only to kill resonating plastic of compression chamber. Sound stays the same but without distortion created by chamber itself hence less harshness.
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