Korg MMT RADIAS, Owner'S Manual, Page: 135 / 176

Effect parameters
129
9. TubePreAmpSim (IFX)/
St.TubePreAmp (MFX)
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.
When used in an insert effect, this will be a mono-in/
mono-out effect.
When used in the master effect, this will be a stereo-in/
stereo-out effect.
Dry/Wet [Dry, 99:1…1:99, Wet]
Sets the balance between the effect and dry sounds.
Tu1 LoCut (Tube1 Low Cut) [000…127]
Sets the cutoff frequency for the low cut filter of stage 1.
Tu1 HiCut (Tube1 High Cut) [000…127]
Sets the cutoff frequency for the high cut filter of stage 1.
Tu1 Gain (Tube1 Gain) [–Inf, –40…+24dB]
Sets the input gain for stage 1.
Tu1 Bias (Tube1 Bias) [000…100%]
Sets the bias voltage for stage 1.
This expresses the effect that changes in vacuum tube
bias have on the distortion of the waveform. Higher set-
tings 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.
Tu1 Satu (Tube1 Satulation) [000…100%]
Sets the input/output response for stage 1. 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.
Phase [Normal, Inverted]
Turns phase reversal on/off.
With the Invert setting, the phase of the signal will be in-
verted between stage 1 and stage 2. Since “Bias” is ap-
plied to the inverted signal in stage 2, this will change
the tonal character.
With the Normal setting, the phase will not be reversed.
Tu2 LoCut (Tube2 Low Cut) [000…127]
Sets the cutoff frequency for the low cut filter of stage 2.
Tu2 HiCut (Tube2 High Cut) [000…127]
Sets the cutoff frequency for the high cut filter of stage 2.
Tu2 Gain (Tube2 Gain) [–Inf, –40…+24dB]
Sets the input gain for stage 2.
Tu2 Bias (Tube2 Bias) [000…100%]
Sets the bias voltage for stage 2.
☞
p.129 “Tu1 Bias (Tube1 Bias)”
Tu2 Satu (Tube2 Satulation) [000…100%]
Sets the input/output response for stage 2.
☞
p.129 “Tu1 Satu (Tube1 Satulation)”
Out Level (Output Level) [000…127]
Sets the output level.
+
Tube Pre Amp1 Tube Pre Amp2
Left
Right
Dry / Wet
Output Level
Dry / Wet
Wet: Mono In - Mono Out / Dry: Stereo In - Stereo Out
–
+
Phase
IFX
Left
Right
Dry / Wet
Dry / Wet
Stereo In - Stereo Out
Tube Pre Amp1 Tube Pre Amp2
Output Level
–
+
Phase
Tube Pre Amp1 Tube Pre Amp2
Output Level
–
+
Phase
MFX
In
Out
Satulation = 50
Bias = 0
Bias = 50
Bias = 100
Bias
Mic/Pre Amp - Saturation
In
Out
Saturation = 0
Saturation = 50
Saturation = 100
Bias = 0