Effect Guide
456
023: 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.
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.456
cTube1 Bias 0...100
Sets the bias voltage for stage 1
p.456
dTube1 Phase
Normal,
Wet Invert
Turns phase reversal on/off
p.456
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.456
gTube2 Bias 0...100
Sets the bias voltage for stage 2
p.456
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
+
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
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
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