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* EDIT: Up-to-date information is available in Yek's Guide to the Fractal Audio Amplifier Models *
TUBE PRE: based on a generic preamp tube
This is not the model of a guitar amplifier. It’s a generic model of a preamp tube (model: Ideal Tetrode), completely neutral and low-gain.
You can this model to “warm up” a source, such as an acoustic guitar or a synth.
You can also use it to operate as a poweramp-only model. For example if you want to use a physical preamp pedal with your AX8 or Axe-Fx II.
Cliff's comments:
TUBE PRE: based on a generic preamp tube
This is not the model of a guitar amplifier. It’s a generic model of a preamp tube (model: Ideal Tetrode), completely neutral and low-gain.
You can this model to “warm up” a source, such as an acoustic guitar or a synth.
You can also use it to operate as a poweramp-only model. For example if you want to use a physical preamp pedal with your AX8 or Axe-Fx II.
Cliff's comments:
"The Tube Pre model is neutral. The "Vintage" tone stack is flat. The Tube Pre model uses the Vintage tone stack. The Vintage tone stack is a passive EQ model but it has a flat response when the controls are at noon. If you want "active" EQ you need to set the type to Active.”
"If you only need power amp modeling, for example when using an external pre-amp through the Axe-Fx, use the Tube Pre model. It uses the Vintage tonestack which is flat when the tone controls are at noon."
EDIT: in firmware Ares 14.00 and later, the power amp in this model is turned off by default.
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