The Effects
68
If the power amp simulation is off (Sag at zero) this control then becomes a simple level control.
This control has 40 dB of range. A setting of ‘5’ is therefore 20 dB less than maximum.
LOWCUT FREQ -
This control allows you to reduce the amount of low frequency content at the
input to the amp simulator. This parameter defaults to a value for each type but can be overridden
if desired.
TONESTACK TYPE -
This control allows you to select the type of tone stack used in the simulation.
The tone stack will default to either
ACTIVE
or
PASSIVE
depending upon the
DEFAULT TONESTK
parameter in the
GLOBAL
menu. When set to
ACTIVE
, the tone stack is a semi-parametric EQ with
+/- 12 dB of range for each control. When set to
PASSIVE
, the tone stack is an exact digital recreation
of the classic tone stack used in the amplifier being simulated. You can also choose from a wide
selection of other tone stacks if desired. Fifteen classic passive tone stacks are available to choose
from. So you can dial up a Plexi model and change the tone stack to a Blackface or Top Boost, etc.
yielding hybrid amp sounds.
TONESTACK FREQ -
This control allows you to alter the center frequency of the tone controls.
You can use this to change the character of the preamp. This parameter defaults to a value for each
type but can be overridden if desired. When using the passive tone stack this control also works.
However, if you change the tone stack type to anything other than the default, the frequency reading
will not necessarily be correct although the control will still alter the frequency.
XFORMER LF -
This control allows you to alter the lower cutoff frequency of the “output
transformer”. Increase this value to simulate an old, under-designed transformer as was common in
some vintage amps. This parameter defaults to a value for each type but can be overridden if
desired.
XFORMER HF -
This control allows you to alter the upper cutoff frequency of the “output
transformer”. Decrease this value to simulate narrow bandwidth transformers as were common in
some vintage amps. This parameter defaults to a value for each type but can be overridden if
desired.
TONE LOCATION -
This control allows you to alter the location of the tone stack. “Pre” places the
tone stack at the input to the amp, “post” places the stack between the preamp and power amp. This
parameter defaults to a value for each type but can be overridden if desired.
PRESENCE FREQ -
This control allows you to alter the center frequency of the presence control.
This parameter defaults to a value for each type but can be overridden if desired.
SPKR RES FREQ -
This control allows you to alter the resonant frequency of the speaker cabinet.
STABILIZER -
Under certain extreme settings of
DEPTH
and
DAMP
the simulation may go unstable.
This would happen in a real amplifier as well. The
STABILIZER
switch alters the “grid capacitor”
values to ensure stability.
LEVEL, PAN, BYP MODE -
These are the standard output mixer controls.
