Here is my setup: Macbook Pro >> Voldemort's ODAC >> About $100 Integrated Amp (new or used) >> Kef iQ30s and ATH ESW9As
Since most of my headphone listening is done in my room and I would like to save money by not buying separate amps for my speakers and headphones, I am curious to see what integrated amps the head-fi community would recommend to me in order to get the best sound out of both (I have to give preference to the speakers, but I imagine that they will get it regardless because I'll have to buy a stereo integrated amp, as, obviously, a headphone amp won't drive my Kef's.) I don't mind craigslist, amazon, ebay, head-fi classified, etc. shopping for used ones either.
And I primarily listen to classical music.