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Fractal Audio AMP models: Tube Pre

yek

Moderator
Moderator
* 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:

"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."​
 
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Bodde

Fractal Fanatic
I always use Tube pre for bass. Also for recording. I like it better than any of the bass amps in the Axe. I also use it for acoustic guitar and my sitar. I always use it without a cab block.

I wonder however if the Tube pre is completely neutral? I think it does color the sound.
 

barhrecords

Axe-Master
I always use Tube pre for bass. Also for recording. I like it better than any of the bass amps in the Axe. I also use it for acoustic guitar and my sitar. I always use it without a cab block.

I wonder however if the Tube pre is completely neutral? I think it does color the sound.
The tone stack by default is neutral.

The preamp model and power amp model do add color.
 

spx90

Power User
TUBE-PRE
And a preamplifier that if missing do not know how I would do
It seems strange, but it is a nice jolly :)
 

Smittefar

Fractal Fanatic
I use this model a lot. Both for acoustic but also for those ultra clean straight to desk funky guitar tones. I believe Chic's Le Freak and the rhythm guitar in another brick in the wall was recorded like this.

I actually thought, it was the input stage of a tube driven console or a generic tube studio preamp that was modelled by this one. I guess I was a bit off on that one, but I still love the model.
 

yek

Moderator
Moderator
Ok, so what are the settings to get is as neutral as can? What can I do? Set gain to 0.5 and set preamp bias to 0.0 and so on?
Keep the tone controls at default. That's it. It's a very low-gain tube simulation. It doesn't create distortion.
 
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