Using the Lehmann with my Beyerdynamic T1, and the combo is amazing, I had before the Lehmann an headphone amp I though was a good buy, but after I got the Lehmann I really heard how good the T1 is, everything comes at a cost and many perhaps find the Lehmann costly, but if you can afford it I...

Extremly good sound and a very good allrounder, perhaps the very best. Have tried mine on different amp's both tubes and transistors and it has never let me down yet. They need some "breaking in" time. I higly reccomend this if you are looking for some well buildt and amazing sounding...