I'm appreciating synergy more and more as I get to listen to better sources. Recently got the Thinksound On1 woodies, sounded nice, didn't knock my socks off until I played them through the Geek Out 1K...MAN, what a shock, they sound fabulous..rich tone, wide stage, crisp highs, controlled, but strong bass, mids to die for!!! I remember getting the Tenores when they were FTM the 1st time...I was quite floored by the soundstage, wide/deep as can be, more than natural seemed to me. Found the tonality to be a bit problematic, though. To my ears, sounded like a bit of color was washed out, not in a major way, a sax still had the tone of a sax, but it was slightly thinner in the texture/tonality department. I didn't find that they were the 1st I reached for, much as I could appreciate what they could do. I liked my headphones to have more presence where the music lives, the midrange. I should probably give them a listen with the GO 1K, it may change my impression. The Doppio, and many other headphones (AT IM70, which sound great to me with GO or my Ray Samuels HR-2 amp, not so much with the X3. Same with the FX850-give em juice, a good source, they fly, less than that as source,, not all that special. The Shure 1540, which does sound great with my X3 or other sources, goes up a few notches with the GO1K or the HR-2. This is of course a well known phenomenon in high end audio...not only is the quality of components important, but even the best products have to matchin a system, have synergy, or they may not sound as good as they potentially could. Put the wrong speakers with the wrong amp, could sound like crap even if they both sold for tens of thousands and were the best reviewed products on their own. Add in personal taste/preferences, and differences in basic ear anatomy, hearing, not to mention the phase of the moon and the tides, and you have 1 tangled mess to make definitive statements in. Of course, if you want iems to use only with your iPhone, than impressions gotten that way may be more relevant to you than what the iem sounds like with a 2k tube amp.
And so it goes.
Gotta go to sleep, work in the AM,more later