The one thing I dislike about the amp is that the headphone jack doesn’t cut the main speakers, so you could conceivably be listening to the speakers and want the Dirac on and be listening to the headphones? It’s weird. I don’t have a sub, but I also understand that it doesn’t cut the sub either. Which is more problematic in the long run as I believe you would need to turn it off. (I’m fairly certain this is a switch in the app though). Since headphones is my primary critical listening these days, I should probably just leave it off unless I’m gonna sit in the chair and listen over the speakers. I don’t believe that it filters through the Bluetooth though, so when I am using the b&ws - music doesn’t sound weird (I need a longer cord to sit in the chair and use the senns.The b&ws, despite being Bluetooth, trounce them on most music anyway. I had listened to Dreamboat Annie prior to the Dead and thought it sounded a little anemic but figured I might just be in a weird mood.)