Advanced's GT-R are Affordable Planar Magnetic Headphones
Archimago's Musings: Modding the Dekoni Blue ("Arch-Mod5"). Streaming audio: Apple Music to be "true hi-res lossless" stereo with multichannel (Atmos) in June.
Fostex T50RP Mk3 Professional headphones at Crutchfield
Archimago's Musings: REVIEW / MEASUREMENTS: Dekoni Blue ("Approved" Fostex T50RP Mk 3 mod). And the importance of the room for hi-fi reviews (Wilson Chronosonic XVX speakers in Stereophile).
Dekoni Audio Blue – Fostex/Dekoni HiFi Audiophile Planar Magnetic Head
Dekoni Audio Blue - Fostex/Dekoni HiFi Audiophile Planar Magnetic Headphone | Dekoni Audio