Description from Amazon USA :
With innovative new performance features, advanced layering and synchronization possibilities, new filter types and on-board effects, the Nord Lead 4 is a synthesizer dream come true. Nord Lead 4 is a 4-part multi-timbral synthesizer sporting a brand new 2-oscillator virtual analog sound engine with 2x oversampling. In addition to the classic analog waveforms, there s a Wavetable mode with unique new Formant Wavetables. Frequency Modulation and Hard/Soft sync options are available for mutilating your sound further and the True Voice Unison mode can stack up to four oscillators per voice for really thick leads and pads. The filter section boasts Low Pass (12/24dB), High Pass, and Band Pass filters and also stunning new simulations of two transistor and diode ladder filters. A dedicated filter overdrive can distort your sound before it passes through the effect section. The new Variation buttons let you override almost any parameter of the synthesizer, instantaneously. Ever wanted to change LFO speed, Modulation routings and reverb amount - all at once, in the middle of a sound With the Nord Lead 4 you can! With 7 assignable variations per program, Nord Lead 4 gives you creative freedom to warp and improvise your sound live, both rhythmically and sonically, and thanks to the Master Clock Synchronization, it can be done in perfect sync to other layers or an external MIDI Clock. All 4 slots have dedicated effect sections with delay, reverb, tube amp simulated overdrive, a Talk effect modeled after a vocal tract and a sample rate reducing Crush effect. Since 1983, Nord has become famous for the finest electronic pianos, organs and synthesizers in the world.