266
025: TrebleBST (Treble
Booster)
This effect models a famous boost/overdrive effect that was
developed in order to produce a “guitar orchestra” effect,
and designed for use with the VOX AC30. You can use this
to add clear boost to the signal, or apply it to an organ sound
to add an overdrive that generates rich overtones. Three
controls allow a broad range of settings, letting you create a
wide variety of overdrive sounds.
026: Tube PreAmp Model
(Tube PreAmp Modeling)
This effect simulates a two‐stage vacuum tube preamp. You
can make individual settings for two vacuum tubes
connected in series. This lets you create the warm sound
typical of vacuum tubes.
b, f: Saturation [%]
With higher settings of this value, the waveform will change
at high gain levels, tending to cause distortion. Lower
settings of this value will produce linear response.
c: Tube1 Bias
This expresses the effect that changes in vacuum tube bias
have on the distortion of the waveform. Higher settings of
this value will produce distortion even at low gain levels.
Since this will also change the overtone structure, you can
use it to control the tonal character.
d: Tube1 Phase
With the Wet Invert setting, the phase of the signal will be
inverted between stage 1 and stage 2. Since “Bias” is applied
to the inverted signal in stage 2, this will change the tonal
character.
027: St. Tube PreAmp
(Stereo
Tube PreAmp Modeling)
This is a stereo vacuum tube preamp simulator (See “026:
Tube PreAmp Model (Tube PreAmp Modeling)” on
page 266.).
a Drive 1...100 Sets the gain for overdrive p.263
b Level 0...100 Sets the output level p.263
c Tone 1...100 Sets the tone for overdrive
b
Wet/Dry
Dry, 1:99 ...
99:1, Wet
Sets the balance between the
effect and the dry input
Src Off...Tempo
Selects a modulation source for
Wet/Dry
Amt –100...+100
Sets the modulation amount for
Wet/Dry
a
Tube1 Low
Cut [Hz]
Thru,
21...8.00k
Sets the cutoff frequency for the
low cut filter of stage 1
High Cut [Hz]
53...20.00k,
Thru
Sets the cutoff frequency for the
high cut filter of stage 1
b
Tube1 Gain
[dB]
–24.0...+24.0 Sets the input gain for stage 1
Saturation
[%]
0...100
Sets the input/output response
for stage 1 p.266
c Tube1 Bias 0...100
Sets the bias voltage for stage 1
p.266
d Tube1 Phase
Normal,
Wet Invert
Turns phase reversal on/off
p.266
e
Tube2 Low
Cut [Hz]
Thru,
21...8.00k
Sets the cutoff frequency for the
low cut filter of stage 2
High Cut [Hz]
53...20.00k,
Thru
Sets the cutoff frequency for the
high cut filter of stage 2
f
Tube2 Gain
[dB]
–24.0...+24.0 Sets the input gain for stage 2
Saturation
[%]
0...100
Sets the input/output response
for stage 2 p.266
Left
Right
Wet / Dry
Wet / Dry
Wet: Mono In - Mono Out / Dry: Stereo In - Stereo Out
+
Treble Booster
+
Tube Pre Amp1 Tube Pre Amp2
Left
Right
Wet / Dry
Output Level
Wet / Dry
Wet: Mono In - Mono Out / Dry: Stereo In - Stereo Out
–
+
Invert
g Tube2 Bias 0...100
Sets the bias voltage for stage 2
p.266
h
Tube2
Output Level
[dB]
–48.0...+0.0 Sets the output level
i
Wet/Dry
Dry, 1 : 99...
99 : 1, Wet
Sets the balance between the
effect and the dry input
Src Off...Tempo
Selects a modulation source for
Wet/Dry
Amt –100...+100
Sets the modulation amount for
Wet/Dry
Mic/Pre Amp - Saturation
In
Out
Saturation = 0
Saturation = 50
Saturation = 100
Bias = 0
In
Out
Satulation = 50
Bias = 0
Bias = 50
Bias = 100
Mic/Pre Amp - Bias
Left
Right
Wet / Dry
Output Level
Wet / Dry
Stereo In - Stereo Out
Tube Pre Amp1 Tube Pre Amp2
Tube Pre Amp1 Tube Pre Amp2
Left
Right
Wet / Dry
Wet / Dry
–
+
–
+
Invert
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