Koolpep has a review of Noble Audio’s Kaiser 10 driver universal IEM on Head-Fi. I would agree with nearly everything Koolpep mentions in the review with the exception of the size. While the K10AU are in fact large since they have 10 BA drivers, they are much smaller than other similar driver count IEMs. My 12 driver Layla are HUGE in comparison. I found that the K10AU are one of the most comfortable and capable IEM I have used in many years. The SQ from these IEMs is incredible and very musical.
Pros: comfortable despite 10 driver size, sounds “royally” good, coherent, best sounding MultiBA in-ear, impeccable build quality
Cons: Pricey, hard to put down, a bit large