PreSonus TubePre V2 - Manual (Page 14)

10
PreSonus TubePre V2
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3 Connections
3.1
Front-Panel Layout
3.0 Hardware
3.1 Front-Panel Layout
Drive control. The Drive knob controls the signal level
being routed through the 12AX7 vacuum tube. The
effect ranges from subtle to extreme, depending on the
setting; the more signal being sent to the tube, the
more distortion you will hear. This is great for guitar,
bass, and even vocals, if that is the effect you want to
achieve. Of course, in some applications, tube drive is
not needed.
Adjusting the tube drive can create
these desirable effects:
• Warming up the sound. This is achieved by adding
in a small amount of tube drive (30% or less).
It is especially desirable for vocals and electric
bass. The resulting sound is richer and sweeter.
• Overdriven tube sound. This effect is achieved
by adding in 30 to 100% tube drive. The more
tube drive you add, the more overdriven the
sound will be. This sound is extremely useful
for creating distorted guitar, and it’s great for
an authentic “blues harp” harmonica sound.