Musicslug is right about different tubes having their own character. I'm pretty familiar with two types, the 6SN7 and 6922 families which my preamp and DAC use respectively.
In general, the 6SN7 will have a fatter midrange and upper bass which yields a lightly more organic sound than the 6922, 6DJ8, 7308 family which on the whole is more neutral sounding. I like both!
When considering tube preamps, pay attention to the tubes being used in its design.
In general, the 6SN7 will have a fatter midrange and upper bass which yields a lightly more organic sound than the 6922, 6DJ8, 7308 family which on the whole is more neutral sounding. I like both!
When considering tube preamps, pay attention to the tubes being used in its design.