Sold: HE-R7DX JM OCD Extreme Stealth Edition
Listing ID: 26384 Views: 486
149.00 USD
Condition
New in box
Negotiability
Firm
Ships to
  1. United States of America


READ THE REVIEWS AT END OF THIS!
THIS SHOULD HELP WITH ANYONE SEEKING TOP HEADPHONE PERFORMANCE

WHEN GAS PRICES AND FOOD PRICES ARE SO INSANE ! I WANT EVERYONE TO ENJOY THE AMAZING SOUND CHARACTER OF A CLOSED BACK THAT SOUNDS BETTER THAN OPEN BACKS- USING FRACTAL FIBERGLASS AND A WELL ENGINEERED MODIFICATION THAT HAS GONE THROUGH OVER A HALF DOZEN SLIGHT TWEAKS THAT IS NOW PERFECTED IN MY LATEST GROUPING OF THE BEST SOUND I CAN POSSIBLY EXTRACT FROM THIS HEADPHONE- WHAT I CALL THE:
DROP+HE-R7DX JM OCD Extreme Stealth Edition


Just received these on Tuesday 5-24- and I got to work on modding -
I am charging $25 for the mod- I just want someone to enjoy the new sound of how a great modification can make even a $149 headphone from Drop sound.... refined much more than my first mod- this one adds a ton of stage and bass tightness-
Heavily Modified see pictures- sound tapers and focuses the now articulate bass, the mod of course extends the 3d sound stage and resonance frequencies of the original - the difference is now a VERY light headphone easy to wear comfortable headphone with spectacular dynamics and fuller more balanced sound and 3d space one that will rival $500 closed backs easily
nothing sounds shrill or cheap here at all- so the price is $149+25 for mod and $25 for shipping and tax I paid- Shipping in USA only - PPFF only- so $200 all in includes shipping
First one one to contact me gets this one of 19 of 20 very limited editions - It takes me 3 hours to make each one and a lot of raw materials to hand cut and place and test to make this head phone possible at an all in price of $200 friends and family pay pal price delivered anywhere in contagious USA - this is a very laborious project and I will keep making them until all my money is depleted or Drop stop making them- I paid full price and I am doing this as a labor of love to show people how the room sometimes matter more than the components-
Each Time I sell one edition here the ad will come down so not to break any head-fi rules so users can leave feedback both ways. I will then replaced the ad with a new one as I build another-
I do this not for a profit at all but for the love of headphone lovers everywhere- these headphones sound better than some $500-2000+ headphones as proven here by my first editions from actual end users here on headfi reviewed here- but with this new OCD edition I pull out all the stops to make it even better-
You can read more about the mysterious JM OCD mod here- https://www.head-fi.org/showcase/drop-hifiman-r7dx-jm-ocd-edition-mod.25830/reviews

I went OCD EXTREME STEALTH
THE craziness of perfection never ends at My House of Mods...
proud and embarrassed a tiny bit to announce the BRAND NEW:
JM OCD Extreme Stealth (SE) mod which is EXTREME in every way... the result is it increases weight in grams BUT controls the bass like never before - and now the cups are as inert as they can be - controlling frequencies like a $1000- 2500 headphone ez maybe more- the cups are inert and as solid as I could make them
Treated on inside with heavy heat resistant heavy duty sound liner while using a stealthy technology of hand cut custom fiberglass mesh in dual multipe de-tfraction layers-

the new layers are providing a dead silent with nearly zero cup resonance - but its like I said an extreme stealth mod similar to the pictures below but taken to the next level entriely! IT TAKES ME 3 HOURS to make this -





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layers of fiberglass shaped similar to a Fibonacci like pattern that make the image and sound stage sound much larger than even open backs - it’s a time consuming process - this non fabric design may just revolutionize all headphones designs and hopefully one day replace the use of typical fabric (figure a) which tends to mute certain frequencies -I can see this being the future of headphones and can replace all fabric in headphones with the fractal (figure c) fiberglass mutipatern actually helps bring all frequencies out and expand them (see image)
the pattern I created here actually de-accelerates the sound waves into a very spacious sound "meshing" unlike fabric which has a deadening narrowing effect (see diagram labeled planar surface a) - this mesh material tunes the sound waves and it comes alive due to their fractal nature- and allows pinpoint accuracy and a wider stage fooling the waves into a creating a larger than life pattern while minimizing any echo or ring in sound waves - it works better than fabric (the idea comes from using much more expensive porous/foamed aluminum similar to ones used on the back wave of the Abyss AB 1266 TC or the Meta Material used in front of the Dan Clark Stealth or the Meta material used in the KEF speakers)



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Listed by: John Massaria (28)
Listed: 2022-05-25
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John Massaria

Member of the Trade: JM Audio Editions/Headphone Modifications
Lots of people pm me
I only make one of these per day
They take me three hours to mod no kidding
 
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