Hi, I sent mine's in for a refit because the left ear was a little too big. I'll do a full write-up next week when I get them back. The V6's have incredibly accurate sound, I had a hard time pinning down emphasis in any one area. The high's are not necessarily over accentuated, they're crystal clear and very well defined. Bass is present and well-controlled when needed, but it may not be enough for people who want that extra umph.
I'm probably one of the limited number of people on this site who have owned at least 4 custom IEMs within a short span of time. The Westone ES5, Earsonics EM4, 1964 Triple (older model), and now the 1964 V-6. I need more listening time with the V6's. Right now I will say they're not equal with the ES5, or the EM4. The performance might be 80-90% of $1,000+ CIEMs.
Overall it comes down to what flavor of sound you want. The Earsonic EM4's have a beautiful midrange which I just love, and the ES5's are nearly flawless. Will get back to you after some more listening.
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