Comfort wise I would rank the headphones as follows MDR1R > SRH940 = M500 = UE900 >> M80 = DT1350.
Stability wise I would rank them UE900 = SRH940 > MDR1R > M80 = M500. I was surprised to find the M80 was no more stable than the M500. I wish both headphones had a similar headband system as the DT 1350 at it would make them much more stable.
Pink Floyd The Wall (Deluxe Experience Edition) In the Flesh (Is There Anybody Out There? The Wall Live 1980-81 Pt. 2)
SRH-940 - At low volume listening this song is extremely clean, detailed, and vibrant with a massive sound stage. The entire experience is very cohesive and musical. The bass is present and full, the mids are perfect, and the treble is also perfectly balance. At mid volume levels the sound remains enjoyable and become more engaging. At mid-hi volume levels the treble starts to become a bit harsh.
M500 - At low volume listening everything is extremely clean, detailed and vibrant with an average sound stage. In comparison to the 940, the mids are slightly brighter sounding and cymbals are bit sharper sounding. At mid volume level the bass really starts to assert itself but not in an oppressive way, the mids become much more in your face and cymbals become a bit less sharp in comparison to the rest of the sound. At mid-hi volume the bass increases yet again and the mids become a bit warmer while the treble remains very balanced.
V-Moda M80 - At low volume listening the M80 is warm sounding and clean with less emphasis in the bass and treble than the M500 or 940, the sound stage is larger than the M500 but smaller than the 940 but it feels slightly artificial. At mid-volume levels the bass increases but lacks the punchiness of the M500, the mids stay warm and enjoyable, the treble while rolled off compared to the 940 and M500 still remains pleasant and relatively detailed. At mid-hi volume levels the sound continues to sound like the mid volume except for being louder. This headphone maintains a very consistent sound experience at different volume levels.
MDR1R (dynamat modded) - At low volume listening this headphone sounds distant and muffled and a strong midrange emphasis that is warm and lush, the bass has a hint of a mid-bass hump, the sound stage is slightly larger than everything except the 940 and does not sound artificial. At mid volume the bass becomes very mid-bass dominant with a hollow feel to it, the mids continue to be warm and lush, the treble improves and comes a bit more inline with rest of the sound but is still rolled off even compared to the M80. At mid-hi volume levels the bass just gets stronger and more humped in the mid-bass, the mids stay strong and the treble improves a bit more.
UE900 - at low volume listening levels the song is very clean clean, detailed and vibrant with a sound stage that is about the size of the M80 but with better 3D spatial qualities and sounds completely natural, while the 940 is still larger the UE900 is very enjoyable. At mid volume levels everything remains in balance like they did at the low volume levels. At mid-hi volume levels these continue to be similarly balanced as they were at low volume levels. The UE900 seems to do cymbals the most realistically and offers the most balanced midrange of all the headphones.
I would say 940 and M500 have somewhat similar signatures at low volume levels with the M500 starting to have a much stronger bass as they get louder. The M500 is a bit higher pitched in the mids as compared to the 940 though. The M80 and MDR1R are definitely more mid centric with the MDR1R being the lowest quality sound wise of all the headphones. The UE900 was for me the best for sound with this song but it also had the least bass presence.
UE900 > SRH940 > M500 >> M80 >> MDR1R
Heart Greatest Hits - Magic Man
UE900 - At lower volumes this song is detailed, clean and fun to listen to with a decent sound stage that again exhibits string spatial qualities. At mid volume levels the bass picks up nicely and the mids are present and rich with the treble maintaining it's detail without coming across as to bright. At mid-hi volumes the magic just continues with the same even presentation.
MDR1R (dynamat modded) - At low volume level listening the 1R again sounds subdued and a bit muffled. The mids are again lush and the bass is showing the mid-bass hump and the treble is rolled off and lacks detail. At mid volume level the bass fits this song well and is quite enjoyable, the mids continue to be lush and enjoyable, and the treble while still being in the background is a bit more presesnt. At mid-hi volume levels the headphone continues the traits exhibited at the mid volume level. The sound stage is slightly larger than average.
M80 - Low volume listening is vibrant and clear with the same mid range emphasis, the bass and treble are both rolled off slightly but both are still nicely presented, the sound stage is larger than average but does not feel artificial with this track. At mid volume levels the sound is again very similar to the low volume listening with everything just becoming fuller. At mid-hi volume the signature just continues to be the same.
M500 - Low volume listening the song is detailed, clean, enjoyable, the bass is nicely present, the mids are a bit thinner than the other headphones, and the treble is sharp and nicely extended. The sound stage is average. At mid volume levels the bass becomes very full and present and compliments the song very well, the mids start to flesh out a bit better and lose some of their thinness, the treble remains clear and extended. At mid-ho volume levels the mid level signature just continues at a louder volume level.
SRH940 - Low volume listening the song is a bit bass shy, has clean detailed mids and treble and sounds a bit distant which is likely due to the larger sound stage. At mid volume the bass is nicely present but less than all the other headphones except the UE900. The mids are very detailed and rich sounding and the treble is clear and detailed. At mid-hi volumes the bass keeps pass and the mids continue to be perfect, the treble starts to get a bit too hot though.
This song levels the playing field alot as each headphone worked fairly well with the song. I again preferred the UE900 the most, the M80 was the next best at low volume level followed by the M500, the 940 and MDR1R were both not as good at low volume levels. In the mid volume levels they all sounded very nice playing off each headphones strengths. The M500 definitely was very good especially if you want more bass presence that is nicely controlled.
UE900 > M500 > SRH940 = M80 > MDR1R
Loreena McKennit The Wind that Shakes the Barley - The Wind that Shakes the Barley
M500 - At lower volume levels this song sounds very intimate and detailed, the bass line is fully present and adds to the songs presence. At mid volume level the intimacy is increased and the bass is about as much as I would like. At mid-hi volume the vocals get too close and the bass line starts to be to strong for the song. The sound stage become more cramped as the volume is increased.
MDR1R (dynamat modded) - At lower volume levels there is the same sense of muffled sound but is not as noticeable as with the classic rock, the bass line sounds nice full as well. At mid volume levels this song sounds very good with the bass line being very nice. At mid-hi volumes the bass line becomes a bit over bearing but the vocals never sound to close or shouty.
SRH940 - At lower volume levels the song is detailed and clean but does sound a bit distant, the bass line is present but weaker than the 1R or the M500. At mid volume levels the song sounds perfectly balanced with the bass line being full but again not as strong as the M500 or 1R. At mid-hi volume the sound is very balanced and pleasant and never shouty in the mids or over blown in the bass. The sound stage is the best on this headphone.
M80 - Lower volume listening is clean and mid centric, the bass line is right in between the M500 and the 940. At mid volume levels the vocals are wonderful and the bass line offers the best balance out of the headphones so far. At mid-hi volume levels the singing is not quite as balanced as the 940 but not as shouty as the M500 and the bass line is still acceptable. The sound stage is above average but not as good as the 940.
UE900 - At low volume levels the mids are clear with a touch of warmth, the bass line is clean and present but less heavy than any of the headphones. At mid volume levels the bass comes in a bit clearer but is still weaker than the other headphones. At mid-hi volume levels the bass becomes quite nice but the vocals get a bit to heavy while never quite crossing the line into shouty.
I found the M80 to do this genre the best, followed closely by the 940 and UE900. The M500 and 1R's added bass presence work well at lower volume levels but become a bit over powering at mid-hi volume levels. The M500 came across as a bit shouty at mid-hi volume levels.
M80 > SRH940 = UE900 > MDR1R > M500
Patricia Barber The Cole Porter Mix - Get out of Town
UE-900 - At low volume listening the song sounds slightly warm and engaging with the bass line being present but without to much weight, the cymbals sounds very clear and present. At mid volume the guitar becomes very present and clear with the cymbals becoming very forward and engaging, the vocals are very intimate like your sitting in a small jazz club at the front. At and mid-hi volumes the sound becomes to strong but remains perfectly clear.
M500 - At low volume levels the bass line is nicely present but the mids and cymbals sound a bit distant as do the vocals which also sound a bit brighter. The overall sound is brighter and a bit thin. At mid volume levels the signature evens out in the mids and treble gaining some more presence and warmth while the bass increases nicely. At mid-hi volume levels the bass almost crosses the line into to strong but is very nice. This track sounded very good with the M500.
M80 - At low volume levels the bass is nice and the mids sound very clear and the cymbals sound clear but not as crisp or as present as the M500 or UE900. At Mid volume levels the vocals stay nice and clean and the bass is nice but not quite as present as the M500, the treble improves but is more in the back ground compared to the first 2 IEM's. At mid-hi volumes the upper mids start to get shouty, the bass also starts to show more of a mid-bass hump.
SRH940 - At low volume levels the 940 sounds a bit distant while still being nicely detailed, the bass line is present but subdued, vocals are very neutral, treble is a bit sharper for instruments like cymbals. At mid volume levels the bass starts to be more present but is still a bit subdued, guitars sound very clean and cymbals maintain their presence but become more balanced to the rest of the sound. At mid-hi volume the 940 sounds extremely balanced and wonderfully detailed.
MDR1R (dynamat modded) - At lower volumes the bass is present but a bit muddy, the vocals are lush but a bit on the soft side, cymbals are bit subdued. At mid volume levels the bass gains some clarity but borders on being to strong, the guitars sound very nice and cymbals gain some clarity, vocals sound warm and intimate. At mid-hi volumes the bass does not become to much and the vocals sound clean with cymbals maintaining their clarity. The 1R sounds more romantic than the other headphones.
This is the first genre where I found myself liking the M500 a lot and strangely enough I also enjoyed the MDR1R more as well even though it's signature is quite different. I think this genre is more balanced than the others I have tried so far.
M500 = SRH940 = UE900 > MDR1R > M80
I am going to stop for now but will add a couple of classical tracks to this comparison later as well as some samples from another source.