Despite the cost, I would be quite happy to hear a set that you help make. I am 11/10 sure it will sound stunning. As for planars you really have to try the LCD-i4, definitely needs to be EQ’d but the bass is the best I’ve ever heard in an IEM. Mids are to die for and overall it shows just how good planars can get! It’s source picky however so keep that in mind.
Excellent info Michael, that sux not being able to source a planar driver at a reasonable cost. I thought they might be $25-$30 tops….what do I know..?