Take a look at Musical Paradise MP 701 MK2. 3 inputs including balanced, as well as balanced output. Simple volume pot and input selector. Multiple tube options and cap upgrade available.
musicalparadise.ca
Single input tube preamp
I'm looking for options for a 1-2 input tube preamp. Space-Tech Laboratory in Canada has the type I'm looking for but I don't know anything about them. If anyone has direct experience with them, please respond. Otherwise, I like to know about similar builders of small, tube line stage preamps.
Balanced preferred but not required. Thanks for any responses.