why do you suppose that is? what does ken do that other designers don't? is there something fundamentally flawed about a design that is affected by the quality of the tubes?
Tube Rolling for Convergent Audio SL1 Preamps
just wondering if anyone has experience in experimenting with different tubes in a convergent audio sl1 preamp....ken stevens, the preamps designer, will tell you that premium nos tubes like old telefunkens, mullards, amperex, etc will make NO DIFFERENCE in the sound quality....that his design works with todays current tubes just fine.....i find that hard to believe since they can make a HUGE difference in other pieces of gear.....does anyone have an opinion that they can offer?.....many thanx!