So, I am super late to the party lol.. Anyways been out of the headphone game for some time after the wife and me had a child (cant really use headphones with small kids)... Anyways I have since moved onto other hobbies and 3d printing was one of them (have built 3 Voron's etc).. So I looked a...

100% agree

To each his own but I personally did not hear the issues you described after removing the grills.. Did you also use the zmf Ori pads when you removed the grills?

I use my 4XX's on an NFB11.28 and a Magni3/Mimby stack.. I will say that with the standard ZMF Ori lamskin pads I do prefer the 4XX's over my 6XX's on either set with most music.. With Jazz and Laid back music in general I go for the 6XX's

Lol yeah very true... Idk the two pad combo was too much mid bass.. think I am going to stick with the standard pads.. if someone wants to purchase my perf pads pm me.

Hummmmmm now you are making me want to try .45 cm foam.. my drop by tomorrow and give it a try.

Same stuff Beau Cauchemar used in this post Was able to pick it up at Hobby Lobby.

I am leaning towards agreeing with you on the perf pads, although I will say the foam mod does seem to correct the bass. While the foam pad also increases the soundstage and the perf pads give a vary airy presentation I think the instrument separation is being effected by it in a negative way...

Did you do the grill mod?

Humm, swapped out the two ring foam setup for 1 foam ring in each pad.. I think this fixes the low mid bass issues without effecting anything else (besides a little less bass on the bottom end as well but this was a minimal change)

I wouldnt call the lower mids diminished its more like they are bumped up a bit (along with the bass) its not bad or anything I just feel like that bottom half of the feq has a hump of sorts. I am still on the fence as to which pads I prefer as the perf pads plus foam mod gives a good amount of...

not going to lie.... I feel like I cheated someone with these... After modding these headphones are way way better than they have a right to be at thier price point.

So I received the perforated pads today I have to say, at first blush with the foam mod... I really like it. Over the grill + zmf non-perf pads it gives what seems to be a wider deeper sound-stage along with more bottom end... Not 100% sure about lower mids though, while they are not muddy they...

My perf pads should be here today, will report back what I think tonight after I install then and then conpair then to the non-perf, non-foam moded pads...

I wouldn't worry much about it tbh... The regular lamskin pads are the tried a true tested an measured solituon and they sound great. The perf ones are just being tested...

Well I went ahead and ordered the perf pads... Will let you know what I think at least... Already have the foam ready to go :P

Well while the per Hummm maybe we should Bill over at the other site (one that shall not be named) to try there perf pads on his set and measure them... I might spring for the perf pads to test myself we will see.

Thought about doing that but I want to keep everything 100% reversible, plus making the new grills was easy and made them look better imho.

No bass loss here. Although the upper frequency's (upper mids and treble) is improved.

Went out to Hobby Lobby and was able to find the exact foam you were using. Was pretty easy to work with and I was able to make my cutouts without much trouble... Unfortunately I did not like what it did to the sound signature.. Seems to bump the bass up for sure but is also does something to...

Took some time to clean up the magnets and painted my grills a glossy black.. Just need to pick up some foam at hobby lobby today.. Will report what I think when I get it.

I also noticed your drivers looked alot cleaner than mine.. As mine has some sort of paper pulp glue on the magnets.. Did you clean yours or was I just unlucky? If you did clean them how did you go about it?

So I pulled the grills off the headphones to see if a grill mod would make a difference and it definitely helped tame the upper range... I went ahead and grabbed a couple wok strainers... Works for now looks better in person... May paint them don't know yet....

Am I the only one who has no clue what you are talking about? Not trying to be rude but it seems you are talking about some cable or something but forgot to post the link or picture..

Exactly what Foam are you using?