Owner's Manual

Amp, Cab & Mic Models
5•6
Bias
Changes the Bias of the power tubes. Set to minimum to achieve a very “cold” Class AB
biasing. At maximum the amp is operating in Class A.
Bias Excursion
Knob 2: The Bias Excursion determines how the power amp tubes’ voicing reacts when
they are pushed hard. Set low for a tighter feel. Set high for more tube compression. This
parameter is highly reactive with the DRIVE & MASTER settings.
Bypass Volume
This is a volume control strictly for the level heard when the Amp Model has been
disabled (and when the FX ONLY feature is active - see page 5•7). This can be handy to
adjust your device’s output level when using it just for the FX models. This value is saved
per Preset.