Pise:
The Pre 1L comes with four tubes, as follows:
6922 (LV1 & V1, LV2 & V2)
The 6922 tubes may be replaced with a matched set of
ECC88/6DJ8s or E188CC/7308s with no circuit modifica-
tion. These tubes were chosen for their reliability and
extremely low noise. The amplifier topology used in the
Pre 1L delivers exceptional performance using the 6922
tube. The tubes' low noise heightens dynamics and pro-
vides a natural tonal balance