Yup, I have both the A5 and the Mont Blanc. The most sensitive IEM I have is the Magaosi K5. It is very picky, and will hiss on a lot of gear. It’s black as can be on the Mont Blanc. I basically use the A5 for hungry full size headphones, and the Mont Blanc for IEMs. Which makes sense, because that’s what each of them are designed for. Lemme know if I can answer any other questions about one vs the other, photos, measurements, etc.