Or a hybrid! Rogue RP7 was a great preamp in my system. Just 4 tubes that last a very long time and allowed me to tube roll. In fact, changing just two of the four would influence the sound about 80%. It was my first foray into tubes as I wanted to try that tube touch, but I wanted it simple and low maintenance. The RP7 uses a very common tube which allows many choices in NOS or new manufacture. I now have a line preamp with 12 tubes which is phenomenal, but not maintenance free! Next stop is SS passive and/or DAC direct. This is such a fun hobby!