Originally Posted by drexman
i stretched the cotton balls in the cup just like BMF 6v3, only the density was more even and it was covering also the cup "walls" not just the bottom cup.
when you say the sound is more open you mean it has more treble? because i didn't notice any difference in soundstage.
Nope, I meant it had more airiness to it and a slightly larger perceived soundstage (small, but noticeable). Treble was pretty well balanced with the rest of the spectrum. The thing was, I think it had an airiness quality because of the thinner mids and highs.
Now having tried both Mrspeakers Cotton mod with electrical tape reflex dot, and BMF's idea of putting 1.5 layers of Transpore down with the "half walls" of tungsten (I used plasticine, and I also have the baffles loaded with plasticine) (I used FatMat instead of Dynamat too), I feel as though I prefer BMF's version more. Mrspeakers version sound very open due to the thin mids and weaker bass. While I think Mrspeakers mod brings out a lot of the great qualities in the highs the fact that the highs roll off so early with the T50RP's it kind of leaves it empty sounding. BMF's version gives me the natural mids that I always liked with a healthy amount of bass (that I may need to decrease in the future if its too heavy) with highs that sparkle.
In the end, Mrspeakers cotton idea end up sounding a lot like a thin dynamic driver that boosts highs and airy sound, while BMF's mods give a more full sound, thick sound. What you like more is up to you.
EDIT 2: Here's what my current set up is:
- SilverStone acoustic foam in cups, no foam on headband hanger
- 1.5 layers of Transpore tape on driver back
- Plasticine "half walls" around driver, in driver holes, and baffle holes (all the spaces you can fit it without overdoing it)
- Plasticine in the edges of the cups to give a good seal
- Stock bass port fabric, didn't mess with porting yet -- don't see a huge need to, no bleed.
- FatMat on ear side of baffles, covered with acoustic foam residue from when I removed it (there's not actually acoustic foam on there)
- Shure 840 Pads with one triple sized cotton ball rolled into a hot dog shoved in the back of the pad for angle
Edited by wdahm519 - 11/3/11 at 12:04pm