Poweramp & Topology

The power amp topology plays an important role in shaping the dynamic characteristics of the power amp’s tone. It defines at what point the power amp will start to break up, and how it will break up. It might sound subtle, depending on different parameter settings, but you will certainly find the sonic differences to be just like those for the real power amps’ responses.



Models the Class A single-ended amplifier. A single-ended-triode vacuum tube amplifier uses a single triode to produce an output, in contrast to a push-pull amplifier which uses a pair of devices with antiphase inputs to generate an output. When going into distortion, it generates a uniquely abrupt distortion.



Models the Class A/B push-pull amplifier with a split-load (also known as “concertina”) phase splitter. Its special topology creates the most smooth and rich power amp distortion.



Models the Class A/B push pull amplifier with a long-tail pair phase splitter. The long-tail pair phase inverter is generally the best choice for a push-pull guitar amplifier. It provides balanced and warm power amp gain structure and very workable headroom.



Models solid-state power amplifiers, which use transistors (such as BJTs, FETs and MOSFETs). It creates the cleanest tone possible, with much less distortion than other types of amps. Your ticket for pure and clean tone


Start by selecting what kind of Power Amp topology by adjusting the “TOPOLOGY” dial.


Use the above guide to adjust to the kind of breakup you would like to have, and the sonic quality you’re looking for.


Adjust the “POWER AMP” knob to dial in just how much breakup is in the preset.


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