CV4010 are probably the darkest sounding tubes...
GE 5-stars are a bit too bright for Grado's IMO
Amperex 5654 or russian 6Zh1P-EV are good and clear sounding driver tubes.
GE 5-stars are a bit too bright for Grado's IMO
Amperex 5654 or russian 6Zh1P-EV are good and clear sounding driver tubes.



















@ my wallet head-fi!!!


