I use a 300B (Woo) headphone amp for my headphone system. Then Audio Research tube amp (in triode mode) for my main system where lots of power is required. Once I heard the 300B of my headphone system… I upgraded every part of my main system to achieve a similar sound… natural, musical, detailed. My all Audio Research system does that.
I would have a listen to the Audio Research VT80. It has a beautiful warm tube sound and power.