I just fired up a new Ultravalve today. Had not seriously listened to one for a few weeks here.
It is driving my Philharmonic Three 83 dB sensitive 4 ohm full range towers flawlessly. Amazing tonal structure, range, transparency, and engagement.
It is easy to forget just how good this little 35W channel wonder really is.
It perfect to replace any of those one watt wonder megabuck single ended amplifiers with something that plays the music, but does not color the sound.