Valve Reactor Technology - Korg SV-2 User Manual

Introduction |9

Valve Reactor Technology

The Power (amp) and the Glory!
The Valve Reactor circuitry in the SV­2 has been tuned­up especially for
live performance. Since conventional modeling effects for line recording
are not used directly with a speaker, they do not include a power amp
circuit, output transformer, or speaker. In other words, they only have a
preamp circuit.
A real valve amp sound, however, is produced not just by the preamp,
but also by the tone and distortion of the power amp, and by the con­
stant changes in impedance that are created by the power amp driving
the speakers. The SV­2 contains an actual low­wattage valve power amp
circuit, a virtual output transformer that uses solid­state components to
simulate an output transformer, and a dummy speaker circuit that simu­
lates the varying impedance of a real speaker. This means that although
it's low­power, the SV­2 has the same circuit structure of an actual all­
valve amp.
This is great when playing live, because the sound arriving to the main
mixer is the same of a real analogue amp captured by high­quality mics.