This was posted in another thread -
the top-tier IEM thread, but it applied to this thread so I thought I would repost it here and answer here.
Since I am done listening to the SA-43 for my review and am just doing my final proof I have moved on to the JH16. I will just say that in my technical ratings the JH16 is similar to the EM3 Pro, although with a very different sound signature, close to opposite, and the LS8 is next up with the SE 5-way and SA-43 close to each other at the top. The SA-43 can have a similar sound signature to the JH16 depending on the switches, and fairly close to the SE 5-way.
SE 5-way: Ultimate resolution with accurate soundstaging. I hear things with the 5-way I don't with anything else. On the richer side of the spectrum, but not in a bad way at all. Top clarity due to the ultra high resolution. These are currently not being sold in the US due to customs issues.
SA-43: Similar presentation to the 5-way but more spacious overall with the leading transparency, not as rich nor as detailed. Detail level is between the JH16 and EM3 Pro. But due to the presentation it sounds very real.
LS8: Very exciting presentation with a different type of clarity than the SA-43 or SE 5-way. More detail and treble extension than the JH16 along with better clarity due to the upper mid bump. Fairly spacious and 3D presentation with more thickness than the JH16, but not as neutral.
JH16: Punchy with lots of bass and a neutral midrange. The treble is a little more enhanced/aggressive than the SA-43. Good detail levels. Soundstage is wide but not the most 3D.
EM3 Pro: Very warm and liquid in comparison, glossing over details and creating a veil. Plenty of bass power, but detail levels are not quite to the level of any of the others mentioned. Soundstage is the smallest of all listed but very spherical which works real well for some songs creating an amazingly realistic presentation. Clarity isn't bad on its own, but in comparison this weakness is brought to light.
The Sony I was referring to is the
EX7550 and you may know more about the different versions than I do!
I have never seen anyone post on head-fi that has both the CT7 or Q, and maybe only about 3 people have posted about the CT7. What do you like/dislike about the EM2? What are you looking for as far as sound and price? What source do you use?
It really depends on the custom which source you can use. And there usually is a wide range of sources people use for their custom IEMs, from a Clip to an 801. In my reviews I list source matching as not all custom IEMs perform the same with the same source, so IMO part of the decision on which custom IEM to choose should also include what source you will be using with it. If you are open to buying one that synergizes, that is great!
And in general, the higher end DAPs offer more resolution and soundstage space than lower end ones, but it isn't consistent.