Got my Mjolnir and Gungnir Tuesday as most of you know. Been running both non-stop since I got them set up. Hadn't planned on saying much this soon, but by chance I found this really cool song I sort of got addicted to and listened to it through the Mjolnir and HD800 57 times before I realized it, so I thought since I was obviously intimately familiar with it I would turn on the BHA-1 and let it get warmed up while I listened to the Mjolnir a few more times. I've been enjoying the sound of the Mjolnir, but I hadn't used the Gungnir with the BHA-1 yet so I couldn't be sure if it was the Gungnir's improvement over the Bifrost or the Mjolnir or both.

I listened in a bit more detail for those last few repeats on the Mjolnir and then as quickly as I could swapped cables to the BHA-1 and played the song. Turns out my detailed listening on the Mjolnir was unwarranted. In just the first minute of the BHA-1 I recognized greater bass quantity, cleaner bass, significantly better detail, smoother highs and greater sense of atmosphere and soundstage. It was like someone flipped a sound quality switch going from the Mjolnir to the BHA-1. It's so one sided I'm going to have a hard time giving the Mjolnir a fair shake the rest of the way, but I'll keep listening.