Grado 225SRi with an AvaStar. Great sounding! Not a big headphone fan but since I tried it I now listen everynight when the house quiets down. Very impressive how clean and detailed it is. Normally I don't get much soundstage with cans but this combo has a realistic stage and it doesn't feel like I'm stuck in a hole like I normally feel. Nice wide open feeling and the front to back placement of instruments and vocals is much better than I was used to hearing.