First impression...I really like the openess and unique sound of Grado, so it is difficult for me to appreciate other phones. I need to spend a day or two with them to be able to enjoy them. Liric is a clear winner in my book, out of the box. Of course not a Grado, different sound but still...What's important for me seems to be there. It has rythm, pace, it is not veiled. I tried it with a hybrid amp (tube+MosFet - TMP Ant) and a push-pull tube amp (Trafomatic Head 2). Altought it is a planar I clearly prefer the tube amp.
The bass was also too strong with the hybrid. With the Trafomatic it balances nicely, vocals are not subdued at all, still enough energy and speed. Bass is also very nice, with emphasis on sub region. Really good with RNB/Electro too. Highs are smooth, not a wrong step there.
Detail is also very good, but close backs have always have some special effect. Isolation...the Dan Clark Ether C Flow isolates better I think. The clamp force is a bit too much, but I think it will loosen up. Build quality is top of course.
I am glad I bought it. I need a closed back in my new place and I think the Liric is exactly what I needed.