Was always interested in high end audio. My last purchase were the brilliant Sennheiser HD 800 Headphone and a dedicated headphone Amp. I have the old Koss electrostatic ESP headphone . Different systems in different rooms . The living room Nad dedicated components with fabulous KEF 104.3.Speakers. Den ,PIoneer TV and pioneer surround sound Amp with definitive Technology speakers and subwoofer. In my bedroom I actually have the first digital synthesized receiver a huge Toshiba unit with old Advent speakers that still sound great . In my man cave I have a lower end system consisting of Polk speakers, Harman Kardon receiver and two Yamaha subs.I will not get into what I have in my garage or cars .