Rocktron Taboo Twin - Manual (Page 29)

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LOW GAIN Function
The LOW GAIN function is accessible in presets which have been stored with the H I G AIN button not lit. The preamp
stage in these configurations provides four distortion types, and can also be used for clean tones.
The P ARAMETER S ELECT control will allow you to access the following Low Gain parameters:
Parameter Description
GAIN The GAIN parameter determines the gain value in the distortion stage.
TUBE The TUBE parameter allows you to select between four different tube distortion types — Hard
Clip, Soft Clip, Class A, Class B. The Hard Clip setting provides the hardest clipping, while the
Soft Clip type provides a softer clipping and the Class A and B types provide the softest
clipping. The Class A setting produces non-symmetrical clipping - therefore more even harmon-
ics are produced. Conversely, the Class B setting produces symmetrical clipping. The differ-
ences between these types are most pronounced at moderate gain settings of about 30dB or
less, where Class B produces the least amount of upper harmonics.