http://youtu.be/TIkzHrNioGUThe Super Plex is an overdrive or distortion pedal that was originally designed to emulate a JCM800 (Back in Black era AC/DC tones through van halen, dokken, ratt, and all those amazing 80's rock "cranked Marshall" tones). The new "Super Plex" nails those tones AND gets you even more modern tones... looking for Vai in a box? This pedal comes as close as I've ever heard in any other pedal.
It has plenty of volume and has 3 gain settings - low, medium, and high gain settings on a switch as well as an independent gain control. The Super Plex differs from the standard Plextortion in that it has 3 totally different gain structures. It is a low gain pedal great for light dirt, a medium gain distortion and a higher gain distortion all in one pedal. It is more transparent than the standard plextortion where the standard plextortion has more of a mid focused marshally 'greenback' sound to it.
Basically, the super plex is more of a modern sounding distortion where the standard plextortion is more vintage sounding.
I've noticed that some guys like play their distortion pedals that emulate marshall tones THROUGH a marshall. Let's be honest - I can play a chorus pedal through a marshall and get a very "marshally" sounding chorus pedal... In my opinion this isn't a fair or accurate representation of a pedal. Because of this, I record my clips and videos through everyday affordable guitars and amps in order to be as accurate as possible.