bluesaint
500+ Head-Fier
Haven't heard the Oppo PM-3. In my opinion, the MM400's out-do the B&O Beoplay H6 hands-down. I listened to the H6 for about 20 minutes in a quiet environment and did not personally enjoy their sound. They just felt lacking overall for me. In fact, on the day, I walked away with the Marshall Monitor which was almost half the price. I own those till now for on-the-road. I keep the Denons at home.
Thanks Romani for the response. How's sound leakage with MM400?