Sony IER-M9 Revisted
Just thought I'd post some quick updated thoughts. I have this on hand again (thanks to Moa Music!) as I'm preparing for a kilobuck IEM shootout.
The IER-M9 is a very warm IEM, generally sporting a thicker note-weight. Its timbre is special within the context of BA IEMs; decay is exceptionally clean and the IER-M9 does not lack transient density like many BA IEMs do. This is one of only two BA bass responses - the other being the U12t - that I remotely give the nod to. The IER-M9 emphasizes mid-bass considerably more with a longer, drawn-out decay; consequently, it's not as clean (read: it bloats slightly). I've also gotten considerably more picky about my treble as time goes on, and treble on the IER-M9 is not as good as I remember it being. It has a very noticeable dip throughout the lower-treble with a strong tilt toward sparkle and sizzle; I think I would prefer a smoother response. Nonetheless, it is not fatiguing, managing to tame even Twice's "Likey" with excellent extension to boot.
Now, I wasn't actually very impressed with the IER-M9's imaging the first time I heard it. It has a distinct lack of center image diffusion with which vocals are difficult for me to pinpoint in my mind's eye. This might just be a "me" thing, as some friends have said vocals, to the contrary, sound distant for them. If the IER-M9 did not suffer from this issue, heck, I probably would have bought one for myself. Alas, while this phenomenon pervades, I do find myself appreciating the IER-M9's imaging chops more on re-listen. It is very incisive when it comes to positional cues with every instrument and vocalist having a well-defined pocket on the stage, devoid of the center image. I do think it has the Andro 2020 beat on this front even if it lacks the same quantity of space, or air, between said pockets. The biggest issue is still the IER-M9's transient attack. There is a distinct lack of vigor, intensity which notes are articulated; in general, the IER-M9's transients skew to the slower side to my ears. That's a shame because the IER-M9 is a pretty resolving IEM.
Those who have read my initial impressions of this IEM will know that I was very impressed when I first heard it. Second listen had me thinking, yeah, this is still pretty darn good. Then I spent a week with it, and my enjoyment was diminished to "it's the IER-M9". Words cannot describe just how safe, ergo boring, the IER-M9 is, and I have found myself consistently less enamored with it as time goes on. But ultimately, I will be the first to admit that it is the most solid kilobuck IEM that money can buy. Like the U12t, I think this is an IEM that most anyone can pick up with confidence, knowing that what they hear will appeal to them to some degree. The IER-M9 runs circles around most of the canon kilobuck contenders in the timbre department, matches them blow-for-blow in tuning. I leave its original score as a sign of respect, then, even if my preferences have ultimately moved on.
Score: 8/10
Just thought I'd post some quick updated thoughts. I have this on hand again (thanks to Moa Music!) as I'm preparing for a kilobuck IEM shootout.
The IER-M9 is a very warm IEM, generally sporting a thicker note-weight. Its timbre is special within the context of BA IEMs; decay is exceptionally clean and the IER-M9 does not lack transient density like many BA IEMs do. This is one of only two BA bass responses - the other being the U12t - that I remotely give the nod to. The IER-M9 emphasizes mid-bass considerably more with a longer, drawn-out decay; consequently, it's not as clean (read: it bloats slightly). I've also gotten considerably more picky about my treble as time goes on, and treble on the IER-M9 is not as good as I remember it being. It has a very noticeable dip throughout the lower-treble with a strong tilt toward sparkle and sizzle; I think I would prefer a smoother response. Nonetheless, it is not fatiguing, managing to tame even Twice's "Likey" with excellent extension to boot.
Now, I wasn't actually very impressed with the IER-M9's imaging the first time I heard it. It has a distinct lack of center image diffusion with which vocals are difficult for me to pinpoint in my mind's eye. This might just be a "me" thing, as some friends have said vocals, to the contrary, sound distant for them. If the IER-M9 did not suffer from this issue, heck, I probably would have bought one for myself. Alas, while this phenomenon pervades, I do find myself appreciating the IER-M9's imaging chops more on re-listen. It is very incisive when it comes to positional cues with every instrument and vocalist having a well-defined pocket on the stage, devoid of the center image. I do think it has the Andro 2020 beat on this front even if it lacks the same quantity of space, or air, between said pockets. The biggest issue is still the IER-M9's transient attack. There is a distinct lack of vigor, intensity which notes are articulated; in general, the IER-M9's transients skew to the slower side to my ears. That's a shame because the IER-M9 is a pretty resolving IEM.
Those who have read my initial impressions of this IEM will know that I was very impressed when I first heard it. Second listen had me thinking, yeah, this is still pretty darn good. Then I spent a week with it, and my enjoyment was diminished to "it's the IER-M9". Words cannot describe just how safe, ergo boring, the IER-M9 is, and I have found myself consistently less enamored with it as time goes on. But ultimately, I will be the first to admit that it is the most solid kilobuck IEM that money can buy. Like the U12t, I think this is an IEM that most anyone can pick up with confidence, knowing that what they hear will appeal to them to some degree. The IER-M9 runs circles around most of the canon kilobuck contenders in the timbre department, matches them blow-for-blow in tuning. I leave its original score as a sign of respect, then, even if my preferences have ultimately moved on.
Score: 8/10