Hi - first post and new mjolnir 2 owner here. I am running with Gumby->Mjolnir 2->HD800. I will echo that the mj2 definitely needs a while to burn in. I listened to mine after 30 minutes and it sounded worse than my asgard2 (flatter and brighter). After 4-6 hours it sounded about the same as the a2 and I was starting to get a little worried. I'm new to tubes and not used to burn-in actually making a big difference. But around 10-12 hours it came into its own and I was happy. Now I'm at around 50 hours, have switched to balanced, and am in audio heaven. MattTCG - definitely interested to hear what you think with the miniwatts - I'm already eyeing those. shultzee - glad to hear the soundstage can gain depth with better tubes. I gained height after switching to balanced but still don't have much depth. It's the only thing I feel a little missing at this point.