> AXP :
SoftAmp 3OD
Win32 Win64    VST
VST rate
4.5 / 5
(10 votes)

SoftAmp 3OD - Vacuum triode stage simulator
AXP SoftAmp 3OD is a vacuum triode stage simulator.

A single triode stage circuit typical for guitar preamps is captured in this plugin. The model engine is based on system of non-linear ODEs. Some smart calculation techniques are used to reduce the computational load.

This effect could be used to apply mild tube overdrive to add some presence to your tracks, or you could chain a couple of instances together for a full-blown high-gain overdrive. You may want to throw in some EQ as well to better shape the signal.

The plugin UI has the real-time transfer characteristic plot display. It is used to have an overview of the amount of non-linear distortion introduced by the tube. It also has a peak-detecting algorithm that will flash a line when the level exceeds 0dB. The can monitor stereo channels separately or at once by clicking the buttons under the plot display.

16x switchable oversampling is also implemented to reduce the aliasing effects. Please note that for the most time the aliasing is low enough to switch off the oversampling. When oversampling is enabled, the plot display will not be very useful, because of the phase smearing introduced by the oversampling filters.

The model has 3 core controls to configure the circuit.
  • 3 different triode models: 12AX7, 12AU7, 12AT7.
  • 3 different plate voltages: 150v, 250v, 350v.
  • 3 different cathode capacitors: 0.47uF, 1uF, 22uF.
The gain/level controls are combined into a single knob that is operated with left and right mouse buttons.

(0.2 Mb)
  V 1.0.6
(0.2 Mb)
  V 1.0.6


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May 29 2018
  5  / 5
it good 4 mastering

Nov 21 2017
  5  / 5
It has very much 12A** tubes like characteristics. I know because I build tube preamps. Even has the size of caps to select. Impressive.
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May 19 2015
  Jose Soler
  5  / 5
Very good. Thanks for your work

May 02 2015
  5  / 5
Really nice plug-in! Can you please maybe consider to make something similiar with power amplifier tubes working in class A and AB? I think a simulation of the differences between 6V6/6L6/EL83/EL34/KT66... will be liked from a lot of users as much as the 2OD. I also got nice results when using 2 2OD's in series. Great work!

Nov 01 2013
  5  / 5
Esta Excelente.-

Feb 12 2013
  5  / 5
AXP rulez! Works well on vocals.

Dec 16 2012
  Flux Angel
  ?  / 5
This is amazing.....it's so rich sounding
Dec 17 2012
Thank you! Please visit my page at KVR from time to time, I've got more to come soon: http://www.kvraudio.com/developer/axp