Hi all, just got back into the hobby (the research/buying aspect) recently. At the top of my list is the THX AAA 789, Monoprice Liquid Platinum, El Stack, and Jot with Modi. Darkvoice is a consideration too, but in last. Would be great to hear some feedback from anyone who's used multiple of these devices. My goal is to have a new SS amp, Dac and tube amp at the end of the day. I don't know if a OTL tube amp would be worthwhile over a hybrid for my HPs but I'm no expert I currently own; 1) Hifiman HE400i 2) Fostex TH-X00 PH 3) AKG K712 Pro 4) Fidelio X2 5) Sennheiser 6xx 6) Audeze LCD-2c - with intention of buying the DT-1990 Pro and either a Sundara or Ananda. So, I am not unhappy with my Amp/Dac setup whatsoever, aside from the Mullards not handling any low EQ all that well, but with all this into headphones I do not want to be limited. I'm currently using a Creative X7 (seemed to review quite well) with 2 single and 2 dual Sparkos op-amps, and a LD1+ with a Burson V5i op-amp and Mullard m8100 tubes through the X7 Dac. Thanks for any information and happy holidays!