Contact Kevin at Upscale Audio ( www.upscaleaudio.com ). Kevin carries the Unison line and is an expert on recommending upgrade tubes to fine tune the sound to your taste.
Tube upgrade for Unison Research unico
The unico will be my first tube amp(coming next week), so I am a tube beginner. Does anyone have experience with a tube upgrade for the unico? What sonic improvements will how much money buy? What tubes should I consider? I listen to everything, but most important is how acoustic instruments sound, high resolution, their smoothness, their attack, their harmonic richness & warmth.