Hifiman 901S - Theodorus Chandra.
Head Pie 10:16 PM
Its a warm very analog sound, with sweet full bodied mids and highs.
Good bass extension n slam. Very deep immersive soundstage.
This is using the balanced amp card, BTW.
Bass whilst strong, is very well controlled too. It never once sounded wooly and boomy.
What amp is like the Hifiman 901S sound ? RSA SR71a.