This has turned into a rather long review roundup because I kept writing impressions about an iem and then I’d find a way to make it sound better and write a new review. For a couple iem’s this happened a few times. But I’ve decided to include all the reviews because it is great testimony to how challenging it is to review iem’s or compare impressions. There are so many factors with iem’s that don’t exist with full size headphones- (tips used, the way the tips fit - depth of insertion, how tightly they fit affecting the seal, the way the iem’s sit in your ears which changes how the tips sit in your ears, and the source used which is an especially big factor for BA iem’s with wacky impedance curves causing them to change FR with different output impedance). So I’ve left them in to give important evidence of how fickle the sound you get with iem’s is. If this was a full size headphone review roundup I would only have one review per headphone. For your sanity I’ve made the titles of the final reviews large and bold and put the pictures there in case you just want to skip to those. I’ll update this thread with more neutral iem’s if I can get my hands on more. I’m getting the Gaudio Clariden on loan soon and depending on its sound I may add it to the list. List of rhythmdevils recommended neutral iem’s in order of price not including aftermarket tips Surge+. Dynsmic waterproof iem 40$ now on sale otherwise 50$ - ever so slightly warm, great tonality. EDC3 100$ on drop.com with optional modded Symbios W Peel tips if stock tips are too small - neutral Sony M7 500$ now with Sony sale otherwise 700$ With Azla Sedna Earfit Light (NOT short) - neutral CA Andromeda 2020 1,099$ with Penon Audio tips (see review for link to tips). - warmer than neutral but extremely resolving and fast CA Ara 1300$ with Azla Sedna Earfit Light Short tips - the most neutral iem I’ve heard with deep insertion. CA og Solaris 1499$ with normal not original or + or ++ JVC Spiral Dot tips - neutral My current favorite iem: Andromeda 2020 Best iem if on a budget: Drop EDC3 which btw responds well to better source and amp so if you can afford it, add the iFI Hip Dac ($150), which I haven’t heard but have read enough to recommend in this situation. This combo would beat a lot of TOTL iem’s and sound fantastic. Most Ergonomic Neutral iem: Brainwavz B400 - sit really well on ears and don’t pull out or move when you move Drop EDC3 - just about as good and probably equal to the B400 for most people. But the way the chassis sits on my ear, the tip gets pulled out of my ears slightly over time or with movement. However I think this is probably a unique problem for me . Sony M7. Not as good as the above but better than the rest in the list. Still moves a bit with head movement and needs readjustment. —————————————————— Surge + dynamic iem’s waterproof to 12 feet indefinitely. 40$ right now. https://www.superbestaudiofriends.org/index.php?threads/40-dynamic-iem’s-that-sound-good-and-are-waterproof-to-12-feet-indefinitely.9569/ Tin Hifi P1 ortho iem https://www.superbestaudiofriends.org/index.php?threads/tin-hifi-p1-ortho-iem-review.9766/ Westone UM PRO 10 Interesting iem’s. With the foam tips (a must, the silicone tips sounded terrible to me) they have one of the best FR and tonality of any iem. They lack extension on both ends of the spectrum but that’s how headphones should be. You pay more for better technicalities but always get good tonality and FR in the range of the iem’s response. They really just sound right. My only complaint aside from below is a tinny quality to the sound, particularly the midrange. But it’s something you could get used to if on a budget. There’s this strange effect that comes off as one dimensionally. I’m not talking about soundstage. The best I can do is an analogy. It’s as if you’re watching a projection of a film and that projection is really great, but you are able to see the projector. Film depends on something called "suspension of disbelief". Afterall it’s just a bunch of clips and our brains have to want to assemble them into a sequence and story, and make sense of jump cuts. But that requires a suspension of disbelief and when that falls apart, and you start seeing the production and are not lost in the film, it gets ruined. That’s what I feel happens with the Pro 10. I can hear the production. That may make no sense but it’s the best I can do. But it’s quite bothersome. Which is a shame because of how well these are tuned. They make me want to try higher end Westones but somehow I know that they go for the "hyper clarity" bright tuning for the more expensive models. Like everyone else. Can’t sell an expensive iem unless it’s peaky as hell!! CA Orion Out of an iPod Touch 7th gen Awesome FR. I think it’s perfect. But God awful tonality. Some of the worst tonality I can remember hearing. Reminds me of Ultrasones. It’s metallic sounding with this dreadful way of shoving details way louder than they should be. Forcefully. Like an over sharpened photograph. The detail is presented above the actual tone of the note. It’s just a terrible listening experience. I can’t imagine releasing this iem to the public. It seems to have potential because of the great FR but wow it needs work. I feel like I can hear all the notes bouncing around in the metal casing and coming out "Orionized". Fucking crime against music. CA Orion Out of iPod touch > iFi nano/AK120 Wow! This is a whole different iem. Reminds me of the Ara going from shallow to deep insertion. It’s still got that great FR, basically perfect. But the metallic tonality is almost completely gone. Hard to explain this one. It’s very listenable. Pretty damn neutral. The only real problem now is an etched quality to the lower treble. It’s not harsh it’s not a peak it’s a tonality issue. Notes in this range do in fact take on the metallic tonality that overwhelmrd the spectrum before. Sounds in this region loose their proper timbre and stick out and mush together. The more I listen the more unpleasant it gets. Listening to the cure right now and it’s pretty bad. So a deeper fit and a dac/amp and maybe higher output impedance helps this iem but it still suffers from some serious tonality issues.