Beautiful sound and plenty loud!

The headphones are very good and high quality. Very loud, clear sound

I tried my best to temper my expectations before receiving this pair, in fear of it not meeting them. It took less then 3 seconds for me on the first track to realize how much potential this iem had. It had already exceeded my expectations of sub-bass and smoothed highs by a mile. I love to EQ a solid bass shelf on most iem/headphones, but dear god, this is the first time I've ever thought of pulling it down a few DB (in a good way). The bass is the star, but still very well balanced and clairty on tracks that you need it. Certainly the most exciting and fun pair of hifi equipment I now own.

Further, I received some of the best customer support from an non-american based company. Competitive pricing and still offer such quick responses and great solutions. I can not recommend this iem and company enough! Long time customer here, has been won.

ive never bought iems before, but i like to think i do my research before buying things and i definitely think this pair was well worth it, they come in the best packaging of any product i’ve ever recieved, making it feel 100$ more valuable. The sound is amazing even with only an apple branded audio jack, they are very heavy in the hands and feel very high quality, but in the ears they feel incredibly light and unnoticed. the looks of these iems is amazing and i love it very much, overall an incredibly good purchase and i would reccomend from a non-experienced audiophile

IKKO OH10 Obsidian
Really great with FLAC material using foobar2000 and RetroArch upsampler, and also my own electronic music in Ableton Live, going through RME Fireface UCX II at 192kHz (96kHz in Ableton Live), the original cable, and some cheap 3.5mm to 1/4" adapter. Also very good with Moondrop Dawn 4.4mm over phone and CTU-01 cable, although I didn't get it to work in higher bitrates on my phone yet. I'm not sure, but I think I need to get some app for that. It seems like it has less bass compared to listening from the RME interface. Which seems reasonable considering that RME has an external power supply.
This is my first pair of IEMs. But I've used Behringer Truth B2030A and AKG K 271 MKII.
Having two types of drivers seems very basic, at least in modern terms, but it's part of a world of miniaturized Hi-Fi sound systems which fit into your ear.
Yes, my initial assumptions were confirmed. This is the closest thing we have to a virtual reality device like some of the devices described in novels of ... ah, help... the guy who wrote Neuromancer, yes, William Gibson.
Balanced armature - who cares what it means. It screams cyberpunk.

These are the best IEMs I've ever listened to (out of about 50 that I've tried). This is my second purchase of the OH10s - I wanted to have a backup in case the old ones break or they ever go out of production. They fit perfect, sound perfect, passive isolation is fantastic, and hey they look pretty flashy too. Best earphones ever.

A long-time "mid-tier" sub-300 USD hifi collector, I was looking for an IEM upgrade that had punchy bass, sparkly trebles, and good isolation. After doing some research and chatting in online forums, I settled on the Ikko OH10. I can say without a doubt these are the best earphones I've ever heard in my life (I have about 30+ IEMs and headphones, and have tried many many more). The tuning, the sense of space, the comfort, the isolation and passive noise reduction, the build quality, it is all incredible; way better than I was expecting. The sound is incredible, a perfect fit for anyone that likes a V-tuning. But it was ultimately the fit and comfort that took me by surprise. I can and often do wear them for a consecutive day or more straight, and feel zero pain, hot spots, or discomfort. That is unheard of - no IEM or headphone has ever gone beyond about the 5-6 hour mark without becoming uncomfortable for me in the past. These ones I could wear almost constantly, and I want to! All other headphones and IEMs in my collection are rendered nothing more than decorative artifacts. There's only one earphone I need, and it's the OH10. I will not need to buy another IEM in my life until these either break or get stolen. Thank you Ikko for creating my perfect listening experience!

I have to admit that I buy it just for fun since many people recommend it.
Compare to my Sony IER-Z1R, of course there is big difference, however, the difference in price is pretty much big as well...
Let's put it in this way, Ikko OH10 is a pretty nice earbud in its price range, perhaps the best. Or maybe even better than some other products in a higher price range.

Pretty darn decent earphones for its price. The bass is really lacking but that's expected for its price range. What is really unexpected is the durability of these bad boys. I accidentally went swimming for a good hour with these in my back pocket, came out dunked them in rice for a good day and they work as good as ever.

This is the first product review I’ve ever written in my life, that’s how good they are. These are my first proper iems so I have nothing to compare them to, but I have absolutely 0 complaints. They’re extremely comfortable and the music quality is superb and just lively with everything you throw at them. Everything from Lil Wayne to Philip Glass sounds extraordinary. Nothing feels weak about these headphones, but the bass and soundstage definitely seem like the highlights to me. 10/10 recommend.

Awesome in all aspects, combine them with the zerda to enjoy music even more. Also works really good with gaming, but be sure to buy a cable with mic because the original cable does not have one.

Fast clean, soundstage beautiful trebe just superb sound.

Perfect when listening with a fiio dac clarity and bass exceptionally good paired with comply eat buds
You forget you have them in your ears

First, my preferred in ears so you to know where I'm at, maybe compare. 1More Triple Driver, Shure SE215, Sony mh755, Easy KZ ZST, Action Pie dual drivers, and dozens of (I think about 30ish) random chifi earbuds.Sony are still what I prefer using if I'm editing audio in some way. If I want "hard hitting" audio I use the 1more triple. In a movie or game, they tend to make something like a sniper rifle going off really pierce. Almost hurt. It "feels" awesome, but it is fatiguing. So I find myself using them for a short while and needing to take a break.The OKKO OH10 made me realize that something could be less fatiguing than anything I've ever used before.I can just wear them for hours without ever feeling a single impulse to "take a rest." It's amazing. I want to describe it as feeling "smooth" but it's also super clear. It's not at all muddy. The bass is fantastic. The treble feels just right. Not heavy. Also, the bass isn't skull shaking, again, that would be fatiguing. But it's still so present. It's very weird, it's very different than any other IEM I've come across. I love it for games, music, shows/movies, everything.I was nervous about spending this much, to be honest, and a day into using them I have ZERO regrets in the purchase.Some people complain these are too heavy. They are very heavy, but I love it. They actually stick in my ears better because of this, tangle less when I take them off, and just feel rock solid. I feel like these will last a long time.My only personal complaint is that the included cable kinda honestly sucks. Do yourself a favor if you get these, pair them with something like the Linsoul Tripowin cable. That's the one I got for it, and that cable feels like the kind of cable these deserve. That and you'll have the perk of the included cable being a "backup" should something happen to your replacement cable.As of right now, I could live with just these, the sony mh755, and my 1more triple drivers, and I would still be a happy camper. I feel kinda bad throwing the rest of my collection under the bus like this. Haha

wanted earphones that matched the smooth warm qualities of my focal elear headphones. these have the same listen for hours treble with no harshness on any music genre. the bass is present, fast and clear. these don't extend as low as the elear but have the same quality and impact. depending on tip the midbass can seem like it overlaps into the mids a little bit, on some music. its usually modern compressed sound sources that have this issue. left to right balance is lovely and there is a wonderful clarity through the mids and treble.
the fit is really nice and is rock solid once in your ears. the cable is quite heavy and sticky but the hooks and fit mean you never notice it. cable is a bit short to reach a pocket in some jeans. I imagine most people buying iem in this price bracket will probably want a balanced cable upgrade so this is a non issue for most.
overall really nice implementation of a multiple BA iem.

This is actually my second pair, had tk return the first due to a faulty driver in the right earbud. Once I got a working pair though, I fell in love! These are beautiful, tough, and sound amazing! The included accessories give you more than enough stuff to set up your ikko's how ever you like. My only complaint is the braided cable, it feels a bit flimsy and loons and feels like it could come unraveled at any time and it could really use an angled connector for the audio jack. But all in all, these are amazing for whatever you use them for and we'll worth the price of you can cough up the $350 USD.

In one word, it's slightly similar to moondrop kanas Pro with wider soundstage and vocals less prominent.This is beast wrt detail retrieval and best part is that every note is weighty not tinny at all. It's awesome when you listen them at moderate volume although isolation is not at par with SE215"Musical IEM for everyday audiophile in you" , Pls use dac ot dap to hear this actually.phone can't help you judge these

First, my preferred in ears so you to know where I'm at, maybe compare. 1More Triple Driver, Shure SE215, Sony mh755, Easy KZ ZST, Action Pie dual drivers, and dozens of (I think about 30ish) random chifi earbuds.Sony are still what I prefer using if I'm editing audio in some way. If I want "hard hitting" audio I use the 1more triple. In a movie or game, they tend to make something like a sniper rifle going off really pierce. Almost hurt. It "feels" awesome, but it is fatiguing. So I find myself using them for a short while and needing to take a break.The OKKO OH10 made me realize that something could be less fatiguing than anything I've ever used before.I can just wear them for hours without ever feeling a single impulse to "take a rest." It's amazing. I want to describe it as feeling "smooth" but it's also super clear. It's not at all muddy. The bass is fantastic. The treble feels just right. Not heavy. Also, the bass isn't skull shaking, again, that would be fatiguing. But it's still so present. It's very weird, it's very different than any other IEM I've come across. I love it for games, music, shows/movies, everything.I was nervous about spending this much, to be honest, and a day into using them I have ZERO regrets in the purchase.Some people complain these are too heavy. They are very heavy, but I love it. They actually stick in my ears better because of this, tangle less when I take them off, and just feel rock solid. I feel like these will last a long time.My only personal complaint is that the included cable kinda honestly sucks. Do yourself a favor if you get these, pair them with something like the Linsoul Tripowin cable. That's the one I got for it, and that cable feels like the kind of cable these deserve. That and you'll have the perk of the included cable being a "backup" should something happen to your replacement cable.As of right now, I could live with just these, the sony mh755, and my 1more triple drivers, and I would still be a happy camper. I feel kinda bad throwing the rest of my collection under the bus like this. Haha

As a bassist in my church, I used head phones for many years as the low end from ear phones was not good enough for me to hear (and enjoy) the bass and drums. I finally found some decent and inexpensive ones and was using those. I recently heard about the IKKO OH10 online and decided to try them.

Impressions:
I'm very impressed! These are wonderful for a bassist. The bass is full and present without being muddy or without being middy.

Aesthetically, they are beautiful and the construction is rock solid! Even the packaging oozes of quality.

The only "downside" I'll state is that these are VERY heavy. Much heavier than any other ear pieces I've used. I suppose the titanium diaphragm and copper alloy construction are the reasons? I was a little worried about that - would they stay in my ears, would my ear fatigue from the weight? Neither turned out to be an issue for me.

I would recommend these without reservations to any bassist looking to step up their in-ears to a mid-budget but top-quality alternative.

With these Ikko OH10 Obsidians, I can easily hear 40 Hz, 35 Hz, 30 Hz…. that’s getting deep. I can even hear 25 Hz and at 20 Hz, I can feel the vibrations, rather than clicking, in my ears. The instrumental separation at the higher end is stellar, but the low end is like a miracle. I don’t know that I’ll ever need to buy better IEM’s than these.

I have no regrets buying them. I think it is a better option than other more expensive IEMs. The only thing I found a problem with was the cable, which is a bit thin and short, but other than that, it is very worth buying.