025: Treblebst (Treble Booster); 026: Tube Preamp Model (Tube Preamp Modeling); 027: St. Tube Preamp; Modeling) - Korg Krome Parameter Manual

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.
Wet: Mono In - Mono Out / Dry: Stereo In - Stereo Out
Left
+
Right
a Drive 1...100
b Level 0...100
c Tone 1...100
Dry, 1:99 ...
Wet/Dry
99:1, Wet
b Src Off...Tempo
Amt –100...+100
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.
Wet: Mono In - Mono Out / Dry: Stereo In - Stereo Out
Left
+
Tube Pre Amp1
Right
Tube1 Low Thru,
Cut [Hz] 21...8.00k
a
53...20.00k,
High Cut [Hz]
Thru
Tube1 Gain
–24.0...+24.0
[dB]
b
Saturation
0...100
[%]
c Tube1 Bias 0...100
Normal,
d Tube1 Phase
Wet Invert
Tube2 Low Thru,
Cut [Hz] 21...8.00k
e
53...20.00k,
High Cut [Hz]
Thru
Tube2 Gain
–24.0...+24.0
[dB]
f
Saturation
0...100
[%]
266
Wet / Dry
Treble Booster
Wet / Dry
Sets the gain for overdrive p.263
Sets the output level p.263
Sets the tone for overdrive
Sets the balance between the
effect and the dry input
Selects a modulation source for
Wet/Dry
Sets the modulation amount for
Wet/Dry
Wet / Dry
Invert
+
Tube Pre Amp2
–
Output Level
Wet / Dry
Sets the cutoff frequency for the
low cut filter of stage 1
Sets the cutoff frequency for the
high cut filter of stage 1
Sets the input gain for stage 1
Sets the input/output response
for stage 1 p.266
Sets the bias voltage for stage 1
p.266
Turns phase reversal on/off
p.266
Sets the cutoff frequency for the
low cut filter of stage 2
Sets the cutoff frequency for the
high cut filter of stage 2
Sets the input gain for stage 2
Sets the input/output response
for stage 2 p.266
Sets the bias voltage for stage 2
g Tube2 Bias 0...100
Tube2
h Output Level –48.0...+0.0 Sets the output level
[dB]
Dry, 1 : 99... Sets the balance between the
Wet/Dry
99 : 1, Wet effect and the dry input
Selects a modulation source for
i Src Off...Tempo
Wet/Dry
Sets the modulation amount for
Amt –100...+100
Wet/Dry
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.
Out
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.
Out
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.).
Stereo In - Stereo Out
Left Left
+
Tube Pre Amp1
–
Invert
+
Tube Pre Amp1
–
Right Right
p.266
Mic/Pre Amp - Saturation
Saturation = 0
Saturation = 50
Saturation = 100
In
Bias = 0
Mic/Pre Amp - Bias
Bias = 100
Bias = 50
Bias = 0
In
Satulation = 50
Wet / Dry Wet / Dry
Tube Pre Amp2
Output Level
Tube Pre Amp2
Wet / Dry Wet / Dry