Im a musicians, audiophile and teacher who loves to listen to various types of music such as Classical (Opera, Concert Choirs, Symphony Orchestras, Pipe& Piano concerts), Jazz (Guitar, Vocals, Organs, Pianos), Gospel (Organs, Pianos, Vocalist, Choirs, Bands, ets) and other easy listening types of music. An earphone and/or In ear monitor must be able to bring out very fine details nuances of the music for analytical purposes in that I teach voice and would most likely use the them for critical listening purposes. What are you thoughts of the sound qualities of the JH audio Roxiannes vs, JH audio 13's? If focusing on sound alone, DO you think that the JH audio Roxainnes are just as good or better then headphones such as the Grado PS-1000, Sennnheiser HD-800's, Sennheiser IE800, Grado GR-10's, MH335's. Focal Spirit Professionals, Focal Spirit Classics, Beyerdynamic Dt-770, and Beyerdynamic Dt-880's. If having to pick more then one with one being used to connect to a digital keyboard to get all the feel and dynamics, which closed and open ear headphone and/or In ear monitor would you choose that would be appropriate? Lastly, I've been looking at the centrium DAC, AK-120 Dac, Sound Devices USB pre Dac, and Antelope Audio Platinum Dac, Which would you think do justice in being the underlining force in doing justice the selected IE monitors and Headphones and which ones if more then one would you pick for travel and home.