Another new DAC: Audio Mirror

Greetings Martin-Andersen
...Great Dac...Just order it and Listen for 10 days...if you dont like it ship it back to Vlad and only Pay for shipping....Its the only way to see if its the right Dac for your system and taste...Love mine (VERY musical with great deatail and a soundstage that is deep and wide with decent Height...The Bass is good but not the tightest or lowest i have heard)  and i had many dac’s before it...most were more expensive than the very Reasonable $1500 Vlad charges for his standard Dac..

Just checking into this unit and the tubes. When I looked at the 5977 mini-tubes I was surprised to see a tube with no pins, like a usual tube has. Instead, there are some longish looking wires hanging out of the bottom.
So, how are these tubes hooked up? Do you solder them into place? How do you do tube rolling or change tubes (especially since the life span of these tubes is pretty short - about 3,000 hours)?
While I'm at it, has anybody compared the T3 to a P S Audio dac?
Thanks

I ordered it after conversing with Vlad. I wanted something on par with my analog front-end? Hopefully it ships today or tomorrow. I did not go for the upgraded version, easy enough o accomplish at a later date. I use Audirvana and have limited experience with digital. Anyone recommend the Audirvana settings for this DAC?

@toolbox149
Vlad has a pair of 5977 tubes soldered together, and attached to a 9-pin adapter, which inserts into a standard 9-pin socket.  So there are two pairs of these = four 5977 tubes.  What's nice is you can roll a pair of your favorite 6922 / 7308 etc. family of tubes into the T3 if you prefer a diff sound.