I was first attracted to these beacause of their looks. I always like a detatchable dual sided cable. The ribbon black and yellow cable seemed to be trying something new (think, the opposite of the HD 700 cable). Add to that, the term Flagship was bandied around so I thought I'd roll the dice. I had read some positive reviews, but Wow, these came out of nowhere. Talk about a dark horse. The distribution in the US is terrible. I bought them for about $400 from Accessory Jack out of HK. The packaging is ho hum. Pulling out the headphones for the first...

      This is exactly what I have been looking for; a well made, comfortable S500. I have bought a lot of head phones looking for this. 40mm titanium Hi Res drivers. Closed back with a bass port. Metal headband with infinitely adjustable slide. Soft pleather pads (40mm x 57mm) My ears fit without touching. These arrived today. I've had them burning for a couple of hours. They sounded good out of the box. I am listening to my headphone test songs as I write and two things stand out: These are VERY comfortable, and these Kick *****.     A little bit...

    I like these just a little better than my Sony MDR XB90ex, which I think is saying a lot. They both have a very ergonomic design that allows them to stay in ear securely and comfortably for long periods of time. They both produce gobs of sub bass, but I think the MDR XB70 has better presentation over all, even with more bass than the venerable MDR XB90ex. Now, I understand that I may get flamed for saying that, but to my ears the XB70s just sound more dynamic and pleasing, and in reality, I grad my XB70's three out of four times over my XB90s...

    I am writing this because I have read so much more than I have written, and I believe it's time to give back. There are two new versions of JVC's famous Bass iem: The FX99X and the FX77X, I am glad that as I have grown in this forum and hobby, my critical ear has developed and I can appreciate different sound signatures. I began this journey in search of "one can to rule them all".  In its place I received an education and made new friends. I can hear things today that I was unaware of a few years ago (thanks Head-Fi). That is why I am so glad...

     These are amazing. The best of all my iems. These really are the HA-S500s of iem. Slightly uncomfortable, but worth the hassle at any price. They are dual dynamic micro driver, like the FXT90, its predecessor. I use the Spiral Dot ML tips. These are gorgeous and well built without being heavy or awkward. As with most cans, I find these shine with proper amping. (Garage 1217 Project Polaris) I listen to mostly Trap, Bass, EDM, but have gone through Early Music, Vocal Jazz, Classical. and can be seen listening to 60's/70's rock for reference.I...

      I am glad I got these, but I was reading a hype train from 2012. These are two micro drivers and a sub; sounds good, right? But good is not good enough. Especially at these prices and the amazing competition currently out there. They don't stay in my ears easily without a shirt clip. The Y junction is heavy for an iem. I have better sounding JVC iem for less money, but less comfortable.(HA-FXT200ltd) They can handle a lot of sub sonic signal without distorting. The mids and highs seem separated and unaffected by each other or the Kelvin sub...

    The Sennheiser HD598 SE I believe is one of the most under estimated and under valued over ear mid-fi headphone at this time.I do not particularly enjoy writing reviews when there are far more experienced and confident members who I believe could shed a more revealing light upon these headphones. But they have more important things to do at this time upon which we at head-fi heartily rely. So I am sticking my neck out; going out on a limb, as it were, and only time will tell.       I believe that part of why these headphones are so under valued...

    I bought these back in 2000 for full retail, which was a lot of money for me at the time. I got to A/B these at a hi-fi shop using my reference CD. I listened to the HD600 and the HD590. I really enjoyed the sub bass impact on the HD590. I was buying them as reference /monitoring headphones for making music with a lot of sub bass content. (It's not always cool with my neighbors to blast sub woofers) They don't have a particularly flat FR, but that is not what I was looking for. I was looking for something that could recreate or replicate my 4.1...

I really loves these JVC HA-FX3X iem. I have been searching for something that can hit as hard in the sub bass as my desk 4.1 system, which I did find the Sony MDR XB950 over ear and the MDR XB90EX iem, but neither had the highs for the snare and high hat. I found the JVC HA-FX201 that has a great sound signature, but it begins to distort under huge sub bass pressure. (I make bass music) I needed these because as the world becomes more cramped, it becomes less polite to blast sub bass into the neighborhood. Now I finally have a way of blasting my...

I bought these becuse they seemed high tech and were 75% off. They were strangley not comfertable or user friendly enough for me to put more than 30 hrs on them. Two years later I just pulled them out for comapison reference, and they actually sounded pretty good. They are still fiddley, meaning, I am always aware that they are there, and the bass is meh, ok, and the treble is tiring. I have JVCs that are known for strong V and maybe harsh highs on the fx201, but they have the bass to ballance it out. These don't. I am glad that I have them, but I...