in-ear monitor earphones, ikko oh1 crystal sound quality singer earbuds rich bass IEMs With 2 -pin interchangeable wired lightweight instrument separation fidelity headphones

A couple pre-review notes...- I'm not convinced that burning in headphones/IEMs actually does anything. If that's your thing, power to you. I did not burn these in and I think they sound fine.- As always (and people seem to neglect to acknowledge this) ear tip fit does matter.- I was never really an IEM person, but now I've got a decent collection (KZ ZSX, ZAX, ZS10 Pro, AKG N40, KBear Diamonds, and now these).- I ran these via my FiiO Q5s on both bluetooth and USB mode using Tidal (some HiFi, some MQA).- I never even tried the stock cable, instead I went straight to the 2-pin silver cable that KBear gives with their Diamond IEMs.I was first drawn to these by their style. The casing and shape is just fun and looks nice. When I also happened to see that Zeos had a review for them on YouTube, I gave it a watch. He compared these to the FiiO FH5s, a pair of IEMs that I've been wanting for sometime but have never pulled the trigger because of their $260 price tag. Granted, if I didn't buy so many budget IEMs, I could afford them but I'd rather try a few things rather than just one thing. Anyways, he gave his stamp of approval and I thought "why not" (I figure if I really don't like something, there's always an option to return it).Build quality is fantastic, especially with an upgraded cord. They feel very premium while still being light in the ears. There are two types of stock silicone tips - black ones and grey ones. I desperately want to be a silicone tip user because their durability and ease of use over foam. I'm too cheap for Dekoni eartips so I buy the kind of memory foam tips you have to man handle before you stick in your ear. That said, there's a notable difference between the black and grey stock tips. The black tips are trash - they're very flimsy and don't create a good seal in the ear canal (which horrendously effects low end). The grey tips, however, are my new favorite thing. The pressure of the rubber is not evenly distributed throughout the whole bud. On the end, there's some stiffness to it but gradually relaxes so that it actually creates a great seal in the ear canal. These are one of the only silicone tips that I've used where I've noticed zero adverse effect on the low end without creating unnecessary pressure in my ear. If iKKO sold these grey eartips separately, I'd buy a dozen of them to fit on all my IEMs.These are very enjoyable IEMs to listen to. The defining characteristic of these IEMs, for me, is their tonality. Stringed instruments, drums, horns, vocals, they all have a very natural tone to them. This is very important to me. With multi-driver IEMs, details are easy to produce. The KZ ZAX have got so much detail, which makes sense because there are 8 drivers in each ear. I love them for that, but their tonality is meh. These though, these pull you into the mix and just say, "come and enjoy". If you're a fan of jazz, classical, movie scores, or acoustic based stuff (country, folk, etc.) - I would say these are your IEMs for sure.I didn't just listen to the above genres though. I gave rap a spin. Powerful, thumping low end that stays in its place and doesn't bleed into mids. There was the occasional instance where I thought it was a bit much, but that was far and few between. Plus, I'd rather occasionally wish there was less low end than perpetually want more bass. I listened to some classic rock and it was okay. Soft rock is fantastic. As you get progressively more into hard rock, the highs not only come out to play, they come to out to kick you in the face. Its actually probably not that bad to most people, I'm just not a fan of upper frequency dominated tracks (e.g. hard rock, heavy metal, etc.). I prefer my upper frequencies to fill details in, not carry the whole song on their back. I did experience some brief distortion while listening to Stairway to Heaven and I panicked. I wanted so badly for these to be perfect. Fortunately! It was a crappy recording of the song because I experienced distortion on several of my other IEMs (of which I never have distortion). Furthermore, there has not been another song where I experienced that.Left to right imaging is spot on. Soundstage feels open, but I'd say its about average compared to my other IEMs. I'm also not a great judge for that. These are decently sensitive IEMs, at least too sensitive to run well on my Q5s without a persistent hiss, so keep that in mind if that's something that drives you nuts.Ultimately, I love these IEMs and will be enjoying for some time to come. $109 is a bit high in terms of budget IEMs. You've left the KZ arena and are starting to compete with more brand names like FiiO, Shure, etc. I have no regrets and I still feel like you get a lot of bang for your buck with the combined excellence of detail and tonality. These for sure will be my go to IEMs for jazz, classical, and scores.

As these are my first actual IEMs, these definitely do impress! As i'm writing this review, I'm currently listening to them right now to burn them in. As a headphone user, I regularly use the Sennheiser HD58x and I absolutely love those things and will try to use those at anytime of the day if possible so i'm use to the sound that my Sennheisers provide. That being said, I knew these IEMs had a lot of shoe to fill in order to impress. These for sure impressed! Right out of the box they sound really good prior to burn in period. I'd still recommend burning them in if you believe in the burn in period.SOUND: The lows are very present and accurate but not overpowering, the mids are clear but slightly pulled back with the balanced tips. To fix that, Ikko includes vocal tips in varying sizes on top of the balanced tips so the choice is yours whether you want the vocals to be more up front. To me personally, the balanced tips work just fine. The treble is clear and non sibilant. For some, that may be the other case. For that, getting different tips would be the fix. Dekoni or spin fit tips would help for sound and a better seal. The sound stage on these are pretty good, not too wide but just good enough to give you a sense of not being claustrophobic.COMFORT: These are comfortable right out of the box! Initially I was worried that these might be a bit too big for my small ears but they fit perfectly with the right size tips. For me, I use the balanced medium size tips that they have included and those fit me better than the small tips. So finding the right sized tips will be essential for these to be comfortable. There's always an option to go with aftermarket tips if none of them work for you. The housing itself doesn't feel heavy at all regardless of it being an all metal housing. They actually feel like they disappear on your ears! So long listening sessions will be comfortable listening sessions with these IEMs.PRESENTATION/BUILD QUALITY: Upon receiving the IEMs, everything was presented nicely as a quality IEM should be. Nothing was thrown into a baggy or anything for that matter. It's like they wanted to make a very good impression upon opening the box in which case they did for me! On top were the IEMs. Underneath that there was a customer satisfaction card, carrying pouch with instructions on it, the included ear tips both balanced and vocal, and an Ikko pin. Underneath all that was the cord. I know I've seen some bad reviews on the cord for the OH1's on previous earlier models but it seems like they fixed the issues with it looking cheap. The cord seems tightly coiled up to give it a higher quality feeling so no issues there although there is no remote control/mic on the wire if you plan on using this for phone calls which is the only downside. I previously mentioned the housing of the IEM being made out of metal. (Aluminium to be exact) These are really eye catching and really do give a pretty shine in certain lights. At first they seem to look heavy but that is not the actual case. These are really really light! So no worries about it being too heavy to listen to for extended amounts of time. The sound isolation on these are really good. No sound gets in or out for that matter. (Based on tips as well for isolation) These would be great for commuting and cutting out the rest of the world.CONCLUSION: These are some impressive IEMs considering I regularly use headphones that provide exceptional sound! These are great sounding, lightweight and for the price, are honestly an upgrade from cheaper ear buds that you'd pick up at a store. Definitely worth a try if you're interested in some IEMs but don't want to sacrifice the headphone quality sound. Hope this helps in aiding with your purchasing decision!

Custom-universal fit is snug in my ears and stays in place well. The ‘point’ near the bottom may be an issue for some. Tips provided are OK, although I recommend Type E (extra juicy) or Spiral Dot (leaner with less bass).Juicy golden DD-driven bass and mid-bass. However, this comes at the expenses of mids/vocals and some music is waaaaay too laid back. Energy picks up again in high frequency. The bass attack is slower and smoother compared to common BA-bass. While the music is “foggy” where vocals can be almost lost, they are also IEMs I can fall asleep listening to..Great on EDM or modern pop, not so great with classical or (classic) rock. Using EQ might be able to correct sufficiently for more usability across genres.Everything excerpt the cable feels good quality. If using these IEMs all the time, I’d put on a different cable (for visual quality, not necessarily sound).