This is the newest version of this classic fully balanced tube headphone amplifier that will drive all planars and dynamics to there full potential. This unit comes with all original packing and accessories with the stock tubes unopened and still factory sealed plus the upgraded tubes included are the Russian Sovtec SL7 (2) Sovtec 6AS7 (4) power tubes. This amp will sound great with both lower impedance phones as well as the ZMF and higher Z phones also. Unit is in
new/mint condition and price is shipped