Yes - those are the tubes (SV811-10).
I picked up a small stash of them (directly from Svetlana's remaining factory stash, which is getting very low now and probably will be gone soon
) and will need to get around to testing them, matching them, etc.
The included Electro Harmonics 2A3 "gold grid" tubes are super linear, super quiet and deliver a very wide bandwidth out to around 500kHz in the LIO DHT PRE circuit. And they are new production, so I decided that these would be the "stock" tubes and bought a bunch of matched pairs to include with DHT PRE.
When I get time, I will be posting about the various tubes that I have tried with LIO DHT PRE so far. I think there are a least 10 different ones so far, and I am getting more (new production, and NOS) soon.