OhmsClaw
500+ Head-Fier
Freya+ gives you pass-through or 6N8S rolling + motorized remote. Skip the LISST and get a Kara if you don't want to mess with tubes.Any mj3 owners have a kara or freya+ to compare the mj3 to? What about valhalla?
I have a speaker setup at a different location than my headphone setup. I'm using tekton electron se speakers and was considering my pre options. I took advantage of hifimans sale and also ordered a sundara stealth refurbished to have as a headphone at the second set up away from my 1266/susvara setup.
Valhalla 2 you gotta get up and mess with volume while rolling/replacing E88CC with new production Genalex Gold Lion or Telefunken Black Diamond (2x matched =$140). JJ's would be my last option for new production stock replacements @$33 each.
NOS 1960's (1970's are even insane) Telefunken white diamond will set you back $340+ for a PAIR. The output tubes are 28$~ While you could roll... you're gonna have to compare too many stats to make it worth your while (gain/transconductance/plate bias etc.). While you can use Low Gain for 5.7Ohms Zout, this piece of kit is at home with 150-300Ohm cans. The Sundara 2020 revision will give you a damping factor of 6.49 in low gain which will affect FR but not terribly; unsuitable for high gain use at 19Ohms and with Abyss.
MJ3 is the best Schiit they've done for headphones yet. From a pre-perspective the Kara or Freya+ makes way more logistical sense and grants full balanced active gain or passive attenuation.