Tube Types and Tonal Character
The preamp includes 12AT7, 12AU7 and 12AX7 tubes, along with 6DJ8 and 12DW7. Each type carries its own balance of headroom, density and grit. Lower-gain settings give restrained coloration, while higher drive produces fatter, dirtier and more aggressive sounds.
Because the tube choice changes the character of the signal path, it is worth comparing types on the same source before settling on one. The differences are most audible when the preamp is pushed.






