Capacitor


Dear friends I am interested to upgrade my caps in the tube preamp from Audio theta tin foil 3uf200VDC to Miflex1uf 240VDC copper foil what are your thoughts will reducing the value to 1uf affect the bass and frequency response or should I go with a higher value than 3uf  
jasbirnandra
"I am blown away by the improvement given the mediocre 3.0uF signal caps are still in place. It sounds like angels are in my room singing to me. Strings just hang in the air and the low level detail is almost overwhelming."
Congratulations @pauly,  happy for you. 
I don't know  why some would question the benefit of changing to superior quality capacitors versus price point influenced stock choices. 
Charles 
My go to cap for years.  Used literally dozens of them. Great sounding cap for sure. But, the VH Audio newer Odams are better sounding based on my experience.  More open, improved bass and dynamics.