N2 / C30 is good for its size, better sounding than Clip+ with more higher output. While it is great in its own right, I don't think it is near the same play field of X3. The only thing I think C30 has the upper hand is BBE and a brighter presentation. X3 might sound a bit warm to some due to the duller sounding AD8397. I am think of swapping it out with an AD8620 (OPA2209 would also be nice) and that should really bring the most out of it.