As others struggle with the E17 (mostly digital issues but also brightness), I feel I should chime in on how great the Arrow is! This is the first time I've heard IEMs sound so natural, and in so many different dimensions. While the E7 for example seems a revelation due to the level of detail, one listen to the Arrow shows it to be so much more neutral and able to pass subtleties in texture, harmonics, dynamics, transients, and smooth frequency response to the upper treble. Naturalness and insight into the performance is what I notice. I hear things I've never heard from headphones from familiar music. Even imaging is improved, mostly in the sense of dimensionality of each instrument.
At $300 it is 5 times better than a $150 amp! It is like changing from a low-end op-amp to tube amps. I don't know how he did it, but this is a high-end product, about the size of 10 business cards. The features are terrific, but it is so neutral that all I use is the low level of crossfade when there are pure L or R mono instruments in the mix, like old Beatles stereo.
I've just returned to the website after over a month of solid listening, so I'm not yet aware of threads that might be singing its praises.
Only drawback is that it is far more sensitive to RF noise from my iPhone to which I strap it than was my E7. But it is still worth it!
PS: one major reason I get such great performance is that I pair them with the Phonak PFE 232. Each shows the other to be tremendous value... yes value for a $600 universal IEM.
