Just the normal black foam disk found on the DT 990, 770, etc. I could try the DT 700/900 Pro X foams on it sometime. There is also the Tygr 300 R foams (I think the Amiron Wireless uses them too) but haven't heard that headphone yet.Does the 770 pro X have that new thick front filter cover or the plain black foam disc of the past?
Sometimes I think with slightly V shaped sharp headphones, they are meant to be played at lower volumes and not cranked too high.
I do recall I doubled the black foam discs on the 990 pro 250.
Haven't had much ear time, but so far the Stellar continues to impress. 
Same I enjoy a good V-shape tuning myself, but sadly haven't had a true v-shape headphone for many years (many were what I call more of a warm V-shape) until I got the DT 770 Pro X so it's a nice change and I forgot how much I like it. The headphone has impressed me quite a bit and it's such a good value for the sound quality.Finally joined the 770 Pro X club today... I've always loved a good V tuning
Some family pics alongside the 770(80), 700 Pro X and 1770 Pro.
WOW! that's an nice collection, I own DT1990 and 1770 Pro myself, and I love the Beyer sound (after EQ)Finally joined the 770 Pro X club today... I've always loved a good V tuning
Some family pics alongside the 770(80), 700 Pro X and 1770 Pro.
Finally joined the 770 Pro X club today... I've always loved a good V tuning
Some family pics alongside the 770(80), 700 Pro X and 1770 Pro.
Sorry it took a while to reply... my head time with these is a bit limited still, as I keep going back to my Fostex stable these days (it is what it is).
Sadly have to exchange my unit, I was noticing occasional weird glarey distortion especially in vocals and weird what seems phasing issues here and there on the left side, I thought it may of been cable issues at first so swapped them around but it didn't correct the occasional weirdness I got with the sound on the left side; so I decided to see if I could see anything wrong with the left driver visually, then saw a small dent in the driver, it's hard to see in the picture, but circled the dented area. Also showing the rear of the driver and the inside of the earcups so people can see what it looks like up close. I have a replacement unit coming should have it by Friday.
Sorry to hear/see this, kman. Thank you; not sure why that happened. It was getting more noticeable as I used them, not sure if it was getting worse or if I was noticing it more. Yeah that’s why I buy on Amazon in case this happens, sadly still seems some QC issues, but I’ve had QC issues with other brands as well even ones with what is considered good QC. I guess automating the process doesn’t eliminate all potential QC issues. The problem could’ve happened outside of the driver assembly process such as when the headphone was being assembled or sometime during packing or shipment.Sorry it took a while to reply... my head time with these is a bit limited still, as I keep going back to my Fostex stable these days (it is what it is).
From the initial sessions I've run the 770 pro X through, I would say it is much less of a professional tuning and more for long term pleasure listening. The aggressive treble emphasis in particular limits listening volumes, so these are best employed for long term sessions in quieter environments (something their comfort plays well into as well) - it also makes the timbre a bit less accurate than the 700 pro, but both are pretty compromised in this respect with the closed back enclosure.
If I had to pick one it would be the 700 pro without a doubt. The 770 pro X is a fun departure for collectors but it isn't really a pro tuning.
It is discouraging to see these type of QA issues lingering with the new Stellar drivers... I had hoped that production issues like this were a bygone thing for Beyer with their much marketed new automated assembly for Stellar.
