I owned the Lyr 3 two times. It’s my go to amp whenever I go through my “I love tubes” phase. With tung sol tube it definitely has a more pronounced low end than the Asgard 3 to the point where it is borderline bloated. With Russian tubes it is more trebly and grainy than the Asgard 3. Ultimately I sold it because of the fact that its sound varies depending on the tube used. With the Asgard 3 it only takes a couple of minutes of warmup to reach its optimum sound quality and it stays predictably great. The Lyr 3 also had a funny quirk where its protection mechanism would sometimes kick in and turn off and restart the amp when playing music with distorted bass and certain video games with low hz sound effects. It did that mostly in the low gain mode paradoxically. No such problems with the Asgard 3.