Simon Philips drums are very well recorded on all 4 of Hiromi Trio Project releases. One thing I listen for asa drummer is the high frequency attack of the stick on the clear heads Somin uses. There should be a very bright impact sound followed by the lower fundamental of the drum. On the DM6 I got the “THUD” with no high frequency stick/attack sounds and the bottom end wasn’t very filled most tracks the interplay of Philips drums and Anthony Jackson’s bass guitar will show a headphones weakness especially when Jackson hits some higher notes and they’re in the same space as the tom toms. Again combine the attack of the stick on the head with the blossomed low end, a higher note in the bass followed by a lower note on the bass should come through very distinct and separate. Also on the more chilled out sections of tracks you can hear the buzz of the snares being excited by the bass guitar. Not on the DM6. The DM6 abbreviated much too much info. Cymbals which should have a bright decay sounded muted or played through a heavy blanket where you hear the loudest fundamental but not much else. The decay sound being much shorter than it should. Hiromi’s piano is electronic so the sounds are very consistent and of course when they occupy the same space as the drums nothing should be blurred together which I heard on the DM6. Many times I didn’t need to analyze anything since I would rip the things out of my ears fairly soon after putting them in. Using some electronic tracks from Lady Gaga which accompanying with her voice is a multi layered synth. The first I use is track #1 Aura from Artpop. The synth sound has a low frequency element, the middle fundamental tone and some higher frequency notes in the edge. The DM6 would eliminate the high frequency element of that tone in a way a heavy blanket would affect the sound. Gaga’s voice lost much of its full bodied presence and all SSssss sounds were as a VERY low level. That’s just the first 2 minutes of the track. At around the 2 minutes mark of Applause right before the chorus she breathes in through nose and it’s recorded at a fairly loud level. No set should have a problem playing that under 1 second sound but yet the DM6 didn’t give me the sense she was in my ear as other sets do. Every budget KZ and CCA plays it fine..... not MY DM6 set. Metal guitars. Take a Doom band like Khemmis which on their Hunted album has a very forward and aggressive guitar tone which is bass heavy, mid forward with some upper end fuzz. The DM6 played it through a heavy blanket once again with the upper midrange portion of the guitar tone that would JUMP out and cause pain but the meat of the tone was too polite, tipping me off something wasn’t right with either my set or I’m simply repulsed by the tuning. Most Metal was simply off sounding again muting most of the brilliance of any guitar tone and only presenting a portion of what should be. Most of the middle range and treble was muted but contained several spikes in the upper mids and lower to mid treble. It was like listening with a blanket over you r head but being punched in the face every few seconds. A very odd sensation and not enjoyable by any means. And that’s my overall description of the DM6 tuning. My first pair of DIY speakers sounded better before I ever tuned them. Metal tracks that had a very distinct click type bass drum sound combined with a healthy low end like the drums on Formshifter from Allegaeon had the click portion non existent along with all the detail like the slappiness of the head which my DT 990 600 ohm and my HD 650 all portray. Those are 2 very different tuning s and they still give up the goods. The DM6 sound like a muffled mess with this album which I know very well having listened to it dozens of times t the gym. Hell even my cheapo JVC FX35 portray the click portion of that bass drum. Most times I forgive a set for not playing this album well but not when it gets so much more wrong. Any headphone will give a slightly different presentation of a given performance and there’s a certain range that’s acceptable and sometimes even desirable. The DM6 did not fall anywhere within that range for me. The only music I didn’t find much to criticize was say a very soft sounding Spanish guitar with nylon strings. The range that the DM6 plays in didn’t make the few recordings I listened to sound too bad. This is by no means a thorough review but only a few quick examples I could think of from the top of my head. I sent my pair back but still haven’t received word from Linsoul or the address in Texas I sent them to over three weeks ago. Linsoul usually has very good CS but this is starting to worry me. Luckily I purchased through Amazon so I hope I don’t get screwed out of my $200. I would have sold them myself but I’m mot sure if I had a faulty set or not.