User manual

4.1.2 Channel Two (high gain)
This channel is voiced for single notes, or for very heavy and
massive rhythmguitar. Due to its slight midrange accent and very
high gain, it possesses a goodpunch, will play with ease, and gain
authority to rule any stage, or studio. The“less is often more” rule
applies here also.
4.2 Pre-amplifier Tubes
The pre-amps are equipped with 12AX7 tubes in all positions. The pre-
amp tubesare not designed to produce high power output. Therefore,
their life expectancy ismuch higher than that of the power amplifier
tubes.This is not to undermine their utter importance in overall sound
and response ofthe amplifier. Also, annoying defects like crackling
noises and low dynamics aredirectly related to defective pre-amp
tubes. Like all other tubes, 12AX7 tubescome in many different gain
stages, and offer a wide variety of tonal behavior.Our choice for
production was made to ensure a wide variety of tones, with lownoise
and good reliability.
4.2.1 Microphonics and Bad Noises
The overall performance of pre-amp tubes is easily influenced by
externalmechanical factors. Malfunction in these external
components will manifestthemselves by a sudden, high-pitched
feedback sound. The input stage isespecially suspect to these
phenomena. If one encounters microphonic tubebehavior, then the
first tube should be checked as a rule. Pre-Amplifier tubes canalso
cause a hum or other bad noises, like crackling or ticking.