Sorry I haven't posted much. I needed to take a break to avoid burn-out. Also, I wanted to rush to make top 1000 leaderboards on Diablo 3 this new season. As far as last night, I was around 750ish on the Witch Doctor Spirit Barrage build. (They are squishy at low Paragon, meaning less than 1200, so it's been a challenge). Look me up as purrin in the Americas region if you still play this ancient game. I don't think I will get to everything today, maybe in the next few days. What we have up are the following: @rhythmdevils modded HiFiMan HE560 @rhythmdevils modded Fostex T50RP @ext1's JAR HD600 First up is the HE560. I took these to work and listened to them for days at my work desk. Here is the funny thing: I thought they were modded HE5s with the fast transient response, tight sound, and clarity. Well, that is until I realized that I wasn't getting that last little bit of low level information which I knew the HE5s were capable of extracting. Then I noticed a touch, just a bit, barely noticeable plasticky timbre... I took the headphones off, examined them, and then realized the gray HE560 letter on the black. Haha! (FYI, I do not know if the HE560 have been reformulated since I last reviewed them). Normally with the HE560, I would choose to use the Focus-A pads otherwise they would come off as bright. The issue with the Focus pads is that there wasn't very much depth and the ears can sometimes touch the baffle. They also kind of close off the sound. @rhythmdevils opted to use these nice squishy thick pads which offer plenty of room and thus a more open sense with more air. Normally, the use of more "spacious" pads would make the FR issues much worse, but somehow @rhythmdevils pulled it off. Note that there was a small bit mid-treble emphasis, which was easily corrected with the twist of a knob on the Loki EQ. I'll let him speak to the mods that he performed - I've known him for a long time and he takes a fastidious iterative approach using only his ears - balancing many factors that go into what constitutes good sound. In a nutshell, these modded HE560 almost had me fooled. They are clearly a two steps, maybe three steps up from the typical entry level HFM (HE400S, HE5XX, Sundara, etc.). Heck, better than the Ananda too. However, I have to admit that I am not big fan of the new tech HFMs and still prefer the old school models (even if they are reformulated). I think it's the damping. There's a weird thing going on with the new stuff. @rhythmdevils calls it undampened. I've called it "bouncy-bouncy". Some people will notice it, others will not. @rhythmdevils modded HE560 Frequency Response Flat Plate Coupler Compensated @rhythmdevils modded HE560 (BLU/RED) vs OG HE560 (WHT) Frequency Response Flat Plate Coupler Compensated Note: My prior FPC measurements from years ago were never compensated, thus HE560 which sounded slightly bright never appeared so measurements. The compensated results now give us a better understanding.