Audiophilepure

https://www.tonepublications.com/review/the-luxman-p-750u/

“The beauty of this amplifier is in the details, the fine details to be exact. Listening to whatever your favorite bass heavy tracks are, the extension offered, combined with a level of LF texture that you won’t notice until you go back to what you were listening to, is uncannily good. And the top end presentation is detailed, refined, and controlled. The Grado P2000s and the Utopia phones both can get strident with the wrong amplifier, yet the lack of harshness through the P-750u is the best I’ve heard on these phones.”