I use the Sony MDR-7506 headphones with the Fosi Audio P3 Tube Preamp which together come to around $200. The headphones on their own are $98 and work very well with sound quality that for me seemed better than the slightly more expensive Audio Technica M40x head phones I had been using for years prior. Combined with the preamp the MDR-7506 headphones really take on a rich sound with the added benefit of adjustable Bass/Treble and bluetooth connectivity. I also really like that the band on the Sony headphones is made of metal, and the hinges (they do fold) are sturdy since I have a big head and have had problems with other ones breaking over time.