The Massdrop LCX has a different power supply than mine... so I can’t exactly predict what it sounds like, but probably really close.
I like Schiit DACs (I have a Bifrost Uber, and used to have a Theta multibit DAC from the old company the Schiit founders used to work for), but the Cavalli has a smoothness and “Liquid” quality that The Schiit amps I’ve tried usually lack for me (sounding a bit fatiguing). I think the Jotunheim sounds great with dark headphones (like the Dekoni Blue), but I wouldn’t recommend connecting an HD 800 or DT 990 to a Jotunheim or Magni. I think the SE output of the Liquid Carbon actually sounds great! Maybe not as good as the balanced output, but it still made a great pairing with my stock HD 800, and I’ve never felt the need to do the Super DuPont mod due to having good amp and DAC synergy.
I also really enjoyed the Cavalli sound in the Liquid Gold, Liquid Crimson, Liquid Lightning, prototypes of the Spark (haven’t heard the improved production version of the Spark yet, but I expect great things and read favorable reviews!). I trust the SQ of his designs. The first manufacturing factory had some QC issues (the first time I tried using the XLR-4 output, my amp broke itself and all outputs stopped working), but I sent my amp in to Cavalli and he fixed it up to work perfectly for the past two years. The new amps use a different factory, I believe. Amazing SQ that sounds like a much larger and more expensive amp (but still bested by my HDV 820, but that Sennheiser should win if it costs so much!).
Between my HDV 820 for home duty and the incoming Sony ZX300A for portable or “computer free” listening, I have to admit that everything else is redundant at this point. I considered the Acoustic Research M200 instead of the Sony, because it’s also such a good deal here on Massdrop, but I travel outside of the country sometimes so I wanted something with enough battery to last a week’s moderate use without recharging. The M200 has a longer battery runtime than A&K players though, so for most people the M200 would be an awesome deal (and you can stream from your phone to both the M200 or ZX300 via high res Bluetooth if you ever want to use Tidal/Spotify/Pandora/YouTube).