I currently own the JH13, but after using them more for this purpose, I'm finding that they're hyped a little in one way or another and wondering if their are IEMs out there that are truer to the source, which is important in my work. I have a one-room studio and am constantly micing instruments while listening with the JH13s, as they provide great isolation in order to hear mostly what is coming through the mics. But, what I'm hearing will dictate mic position and mic choice. If, for example, the IEMs are slightly hyped at around 8K, then I'll tend to gravitate toward a mic that's a bit darker to compensate. In the end, come mixdown while listening to my studio monitors, what I thought I was hearing in my IEMs sometimes isn't what I thought I was hearing at all. Because of this, I'm wondering about other IEMs that don't hype anything in the frequency spectrum, relatively speaking. Something really "flat," but very fast, quick transients. I know in these forums "revealing" is mentioned quite a bit, but I believe some may feel this way because their is a bit of hype going on, which can reveal things better, if not being entirely accurate. I don't want this; I'd rather have flatness at the expense of this "fake" revealing. Some other IEMs/phones I own, and my descriptions of their sound... Focal Spirit PRO: These are the flattest phones I own, but they lack a lot of transient information in the highs above 6K or so. They seem to struggle in that area. They're very "boring," but boring is a good attribute for what I'm looking for. These also lack a lot of "air". DT880 (High Impedance Version): A little lean in the bass overall, and slightly hyped above 8K (elevated), but faster transients than the Focals. Etymotic ER4S: Very smooth in the highs but sounds like a high pass filter to me (the bass rolls off gradually - so the frequency response is relatively flat, but the whole thing is tilted upwards). HD600/650: A friend of mine owns these, and I have access to them, but never liked them for my work, as they both sound muddy to me in the upper bass. Note that the headphones I mention above are to only give you my perception of their sound. I'm looking specifically at IEMs. Thanks!