New headphones from John Massaria Audio (JMA), famous for modifying Kennerton and Hifiman products. See below for product description from their webstore:
JM Audio Edition XTC 50mm BioNano Wool/Beryllium Dynamic
CONTACT US FOR COLORS AND STYLES AVAILABLE and TUNING AVAILABLE
We use two different drivers (Berrylum and Woven BioWool both Cast Baskets not stamped using N52 magnets). We also offer upgrades to 7N (What is OCC 7N? Basically the best copper wire you can buy in terms of both sound quality and physical properties.) We can use this on your XTC for internal wiring- Material: OCC 7N (99,99999%) copper- OCC (Ohno Continuous Cast) a casting process developed to help defeat annealing issues and virtually eliminate all grain boundaries in copper. It is the best of the best available and we beelive we are the only headphone company offering this option. We also use WBT silver solder with these upgrades.
If inquiring for custom mods on the XTC- we can personalize the email to show you what is available and how we can help. We will help you select the correct ear pads and wood styles that meet you needs or desires for sound and esthetics.
We don’t mass produce anything. We custom tailor our products to suit what an individual wants and that takes skill and time. Even our most basic mod will get the utmost time and dedication from us until we are satisfied with the sound quality. We have to meet all of the typical qiality we feel is necessary We don’t simply mod away, slap a sticker on it and call it a day…we take our time on each individual headphone until it is ready to be loved and used. JM Audio Editions specializes in headphone modifications, accessories, and in stock headphones ready to ship that come with a full warranty. Every headphone we mod or make gets tested before we put our signature logo on it- Frequency response, sound sweep, spectral flatness test, dynamic range, bass shaker, driver matching, wiring in phase, absolute phase check for all internal driver wiring.external wires, Harmonic Distortion Test, and Binaural Test - then we audition each set of headphones with 10 test songs. We ship direct from our headquarters here in New York USA worldwide. Look around and email us with any questions at firstname.lastname@example.org
JM Audio Edition XTC Open Back 50mm BioNano Wool/Beryllium Dynamic
I have spent the better part of this last year and this year searching for the best measuring dynamic driver… one that can be customized and tailored for warmth and extraordinary detail - and can be further dialed in any way a user may like before they order. I found what I consider the finest driver on the market - an all forged/cast not stamped basket utilizing N52 magnets and an occ copper coil system with a very fast and agile nano sized 50mm diver - one of the best I ever measured.
Utilizing our patent pending fractal fiberglass mesh system to open and extend the soundstage and create more depth emulating an open back along with our proprietary new nautilus spiral sandwiched between layers of fractal mesh - this allows a new amazingly open sound unlike any we ever heard before- it sounds so correct and so close to the best open backs that practical money can buy no matter the size of the cup.
We also wired the very precious drivers with OFC copper wire - the best I have ever seen in the headphone business available that I know of especially in this price range. We do offer internal wiring using OCC 7n wire as well for a slight upcharge w/silver WBT solder ($50).
The XTC Is tuned to reveal all the details deep inside your recordings. You can expect deep tight bass with no bloat yet at the same time the XTC is even and smooth through the mid range and treble. The XTC has precise timbre and has a knack of digging out sublime details with air as light as a feather; while remaining composed and never harsh or sibilant. Each song you play you will dive deeper into the recording and immerse yourself like no other headphone I know of currently - a very light weight headphone (14-16 ounces - as a comparison the Hifiman Arya weigh in at 404g / 14.3oz.) and extremely comfortable headband - yet is now a heavy weight in performance- utilizing JM Editions patent pending fractal mesh technology for a wide spread out soundstage. Ez to drive at 32ohms and 114 db efficiency!
We are including a practical Waterproof Flight Case to protect these during transport and storage.
You also get a choice of 2 (two) sets of ear pads. We have 3 choices : (1) Vegan Leather Exterior Pad with Microfiber suede Fabric that touches skin with slow moving but not dense memory foam for a light airy feel both on your head and for your music sessions. A real favorite of mine is the (2) ‘Fluffy Memory Foam Angled’ for a more bassy dynamic experience with ultimate comfort- like two soft pillows on your ears. We also can recommend a very (3) light leather like perforated ear pad for the most air and spread out stage and less bas option. Can’t decide on which ear pads? Email us and we will help you select the best choices for your music tastes. Its easy!
And for the ultimate ear pad choice - we just added two very premium choices - top of the line deep cushion perforated angled sheepskin leather (more open sound than solid but slightly less bass) for $50 additional or solid top grain deep cushion supple soft leather (more bass than the perforated sheep leather) for $50. Both of these are my personal favorite both for comfort, sound and ultimate luxury. Email me for more even more recommendations if you are looking for personal guidance on ear pad choices and your sound preferences. This is my passion and I can help you get exactally what you are looking for... email me at: Massariaj@yahoo.com
The XTC series also Includes a beautiful 2mm cable- braided w/36 strand 26AWG high purity OFC (Oxygen-Free Copper) cable, Litz structure which means some strands will be mixed diameters yielding best performance. Each ear cup gets a dual 3.5mm male plug for direct wiring to each ear cup driver- termed in 3.5mm for amp end, 2 m XLR cable or special request by email - the 2m TRRS end. Email me for more options or questions at email@example.com
Please note: Black color is $75 addtional.
You can purchase them from: https://www.jmaudioeditions.com/shop