nux roctary force guitar effects pedal rotary speaker simulator and cabinet polyphonic octave effect 2 in 1 nux nu-x original tsac technology rotary speaker effects slow/fast switch with adjustable rising time built-in overdrive accurate polyphonic octave effects: +1 octave and a -1 octave fet buffered bypass. roctory is a word mixed with "rotary" and "octave". it is world's first rotary speaker cabinet simulator with a polyphonic octave effect. with nux original tsac technology, it faithfully recreates the lush swirling sound of the rotating lower speaker and the treble rotor horn in 3 dimensions! it even captures the characters of the over-driven tube amp to the speaker!